Undercover Underage Duke

Reincarnated without memories, given a second chance as a chimera with a limited lifespan. Leon struggles through his strange new life. He attempts to improve his dungeon and evolve himself to live longer and become the strongest Dungeon Master—no. The Dungeon Overlord. Helped by his Dungeon System: the mysterious Ifrit, Zafira, a Level 100 Succubus Queen, and his band of trustee goblins. Leon aims to overcome his limits, survive and reach the pinnacle of the world. Whether through trade, domination, or tricking the hero's beautiful party members into becoming his private mercenaries. Leon will face the weakest and strongest beings in the magical world of Umbra and surpass all!

Lukas was just another struggling student on Earth, a chemistry major obsessed with flammable substances. But his fascination turned fatal when an experiment went wrong, engulfing him in flames and ending his life in an instant. Yet, death was not the end. Reborn in a world of swords and magic, Lukas finds himself as the sole heir of the mighty Ignis family—the legendary Children of Fire. But something is different. The flames that once consumed him have now become part of him, awakening a power unlike anything this world has seen. As he navigates noble politics, rivalries, and the looming dangers of a vast and mysterious world, one question remains: Will he rise as a beacon of power, or will his flames reduce everything—including himself—to ashes?

--[WSA 2025 Entry]-- Betrayed by his sister. Betrayed by chosen one's humanity. Betrayed by the Gods. That was how the life of Leonard, the Defier of Fate and the world’s greatest heretic, came to an end. When demons invaded human lands, he received a revelation from the Goddess. She commanded him to act as a spy, to infiltrate the enemy ranks and expose their secrets for humanity’s sake. To fulfill this mission, he had to sacrifice a part of his soul. He accepted a demonic contract, surrendered his soul, and became a demonic human. Risking everything, he provided critical information to the humans and helped them turn the tide of battle. But then, he had a shocking discovery. The war was nothing but a gambit between various gods and before he could act, the war was stopped out of nowhere. In an unexpected turn, humans and demons put aside their hatred and signed a peace treaty. Before Leonard could make sense of it, he was betrayed. Both demons and humans joined hands to kill him. "Fuck! If there is a next life, I swear I will tear you gods apart!" With this scream, he thought his suffering was finally over. But… When he opened his eyes again, he found himself in the body of Karl Veydrin, the son of the Grand Duke of the Heizen Empire. But this new life was no different from the last. His sister wanted to get rid of him. Born with clogged vessels and no talent, he was nothing but a disappointment. A subject of fun and ridicule among the fellow nobles. Despite rebirth, nothing seems to change. The cursed fate. The distorted history smearing his name. A world that was against him. Leonard, now assuming the identity of Karl, let out a low chuckle. "Don’t worry, Karl. I will have revenge for both of us." "They called me heretic right? I will show them how a true fucking heretic acts.” Follow Kael's journey, as he fights against the fates and injustices to drag the ones ruling above.

What do you do when your brother dies because of some entitled assholes? You go undercover. My real name? Clare. But at school, I’m Clause—just another guy blending in. Disguised. Watching. Yes, a boy. No, it's not an all-boys school—I'm just deep undercover, hunting down the bastard responsible for my brother’s suicide. Nobody—and I mean nobody—messes with my precious brother and gets away with it. They better pray I never find them, because when I do? Death will be a mercy, and trust me—I don’t do mercy. And as for the egotistical Alpha and the narcissistic Vampire Prince? They can go fuck themselves. I don’t do mates, I don’t do claiming, and I sure as hell don’t do them.

18 and naive, Belle Hart thought marriage would end her misery, only to realize it had just begun! What started as a promising love turned out to be a facade, would Belle choose between a second chance or leave? She met her mate, the Duke, who she proposed to when she came of age. A month in, things took a turn. The Duke leaves for war before she could inform him about her pregnancy, only for him to return with a mysterious woman whom he claimed to be his new wife! The audacity! Trouble ensued and Belle suffered a miscarriage as a result. … “What did you just say?” He asked, his gaze darkening. “You heard me well, I seek a divorce. I wish for us to go our separate ways,” she replied, her voice steady as she met his gaze with confidence, though inwardly she was shaken by his presence. “You are my mate, Belle, and I am yours. Divorce is the most foolish notion you could entertain. Do you believe any man would take a worthless creature like you as his wife?” He scoffed, his words biting, causing her heart to ache. … The Duke's refusal pushed Belle into the arms of the king. All she had to do was bear him an heir and he would help her get her revenge! "I want you to marry me, Your Majesty, and aid me in seeking my revenge against the Duke and those who have wronged me. In exchange, I shall bear you an heir before you help me," she said, her voice steady and full of purpose. What will the choice be?

On his 20th birthday, Asher's mother confessed something he never expected. After the truth was revealed, she died giving her last blessing to him. That's when Asher found himself all alone, confused about his own identity and worrying about his future. What did she say? -He was someone special? -Someone people would come after? She said he was coming from a very rare but also a very special race called omega where men could get pregnant. Was it real? At first, Asher strictly refused to accept his mother's confession. But in the end, he had to believe it. Because it was the bitter truth. If he was really coming from such a rare race, and had such a special body, did he have to live all his life hiding so he wouldn't get caught and become someone's plaything? Was that the only way to avoid getting the bad ending his father got? Why was he even born as someone like this?! He just wanted a peaceful life. So, it wouldn't be as dangerous as his mother said if he just forgot he was special and lived like a normal person, right? People would not notice. Alas, it's been a long time since people last saw an omega and they must be believing no omega exists now. At least that's what he thought... He thought people might have forgotten about his existence and he would not have to face any problems in the future.  Whether he was special or not, he still became a target. When he was kidnapped and auctioned as a slave, he regretted ignoring his mother's last advice. "Don't trust anyone easily. Your safety is in your hands and protecting yourself is your duty." He could only blame himself and expect for the worst if his special identity was to get revealed and meet the same end as his father did. However, his fate gave him a second chance along with a huge surprise which changed his life for the better. Hopefully, Asher was saved by the so-called 'bloodthirsty monster' duke and brought to his mansion to babysit his spoiled 10-year-old little sister who threw tantrums declaring she wants Asher to pat her head and comfort her. Just to babysit this adorable, little girl.  He was safe. His secret was also secured within himself. Thanks to that chaotic sister and brother, Asher's life slowly took new turns and continued with almost no obstacles...till some point. The surprise? The duke happened to have some kind of a 'strange' illness that had no cure. Not long after when Asher discovered it, he ended up becoming the perfect cure for his illness. But how? -Remember? He was 'special'! Where would his specialty as an omega lead his life to? What kind of mysteries would he have to encounter with this duke wishing comfort from him?  Will the duke's 'strange' illness ever get healed? How would their story flow to that perfect happy ending with the twist of love landing in the middle of their 'just a deal'? ________________ Note:  This story continues in a historical timeline. Similar to omegaverse, but not the same omegaverse universe. Magic, revenge, dukes, royal families, curses, spells, heats, ruts... (The book cover is from Pinterest. Respect to the artist.)

A wealthy duke's wife gave birth to twins, Mika and Mirkon, they were the complete opposite. Mirkon was calm, and stoic, while Mika was playful and mischievous. As both of them grew, they noticed many nobles beating up commoners, or commoners stealing from the nobles. Mirkon thought that it was normal, but Mika thought it was unfair and decided to take things in her own way. During lunch, she suffocated a bully in the Restroom. There, she felt satisfaction she never felt before, and began to murder each bullies day by day. Some time later, she was caught trying to hurt the rude teacher, and was sent to the principle's office.. Long story short, the Duke was mad and didn't listen to a word Mika said. With no mercy, the Duke experimented on Mika as punishment, and accidentally giving her the ability of immortality and dangerous uncovered powers.

Meet Sophia Jang—the epitome of a modern woman. She's passionate about K-pop, K-dramas, and stays deeply connected to the ever-shifting currents of her country’s current affairs. With a Sharp-tongued, opinionated, and a master of 'cancel' culture, she never backs down from calling people out. But fate has a twisted sense of humor. After mocking a historical novel, suddenly finds herself trapped in one. Except, instead of the old Korea , she lands in the strict but fancy — Victorian era. Worse, she crosses paths with the most ruthless, ill-tempered, and dangerously influential man of his time - Raphael Von Veldt. In a world where her words hold no weight and her usual tactics are useless. Can she outsmart the merciless duke, or has she finally met her match?

Lang Huan, a beautiful young woman, descendant of the prestigious Lang Clan in the modern world, is swept away by fate into another dimension—one where time and reality are entirely different. The long-dormant power within her awakens, transforming her into a formidable Wolf Warrior. Amidst the chaos of this unfamiliar world, she crosses paths with the cunning yet captivating The Eldest Princess Zhao Yi. What starts as a dangerous game of deception soon entangles Lang Huan in an inescapable trap—one that leads her not only to danger but also to an unexpected love. On a night when the moon shone brightly, the princess let her hair fall like a waterfall and wore a transparent gauze dress. She threw herself at Lang Huan. Lang Huan’s heart nearly jumped out of her chest—she almost had a heart attack. Lang Huan : “What are you doing?” Feng Yao : “Hug me… I am cold” Lang Huan : “……” Feng Yao : “Kiss me…” Lang Huan : ”Are you crazy? I am a woman…” Feng Yao : “No problem…I like woman” Lang Huan : “…….” #Yuri #comedyromance #palaceintrique #romance

Chloe an undercover agent is assigned a difficult task of dealing with Milan.Milan is a Mafia Lord who is known for his evil deeds. Chloe is supposed to get close to him, and make him fall for her. It is a difficult task for her but she has a task of bringing him to justice. Will she succeed or get caught in his web. Dive in to u cover the hidden secrets that will be uncovered,and know Milan's fate. #Contains alarming scenes #Elsie

Rosellene Valentine, the eldest daughter of Earl Valentine, was the epitome of beauty, a fragile and untouchable rose that bloomed in the frozen gardens of the Valentine estate. After reaching the depths of despair. She returned unexpectedly, stepping back in time by seven years. Before fate and time had ruined her. Then, She met him...The Duke of Eryndor, the kingdom's guardian and shield. She had become gracefully attuned to the admiring glances and silent reverence of those around her. So much that she could feel the weight of every lingering glance, the unspoken affection in his eyes, as his love for her bloomed, undeniable and apparent...once again. "Should your joy be the prize, I would gladly place myself at your service." His golden eyes seems to glow faintly in the dark as he whispered softly. (The Prince charming X The Damsel in Distress)

"In a world where power is everything, Kaisel de Ravengard, the enigmatic Duke of Ravengard, hides behind a mask of nobility while orchestrating a grand scheme of deception and revenge. Born into disgrace and marked by the fall of his family, he wields forbidden magic and the deadly power of the Seven Sins to dismantle the corrupt aristocracy from within. As shadows whisper his name and enemies fall one by one, Kaisel moves ever closer to his ultimate goal—vengeance for his mother’s murder and the complete domination of the Empire."

Cucu pedagang rongsokan menikahi putri Duke pengemis. Kontrak tersebut berlaku selama dua tahun dan dimaksudkan untuk menguntungkan kedua belah pihak. Bastian Klauwitz yang membutuhkan batu loncatan untuk karier dan balas dendamnya. Dan Odette von Dissen membutuhkan uang untuk memulai hidup baru.

The Playboy Duke of the Egypt, force to marry the general of the Egypt, Boy's Love story

Tiara was killed in the real world and then reincarnated to live in the body of a noblewoman in the novel she read named Claudia Ambelynn. When she lived in the novel world, she was reunited with the main protagonist who was her husband who was killed in the real world. In addition, she also met the murderer in the novel world and also played the role of the main protagonist's older brother who was known as the most cruel character. It was not that easy for Tiara to live in the novel world written by her husband. She had to carry out a mission that she had to conquer the heart of the antagonist, Duke Harry, in order to return to the real world. This made Tiara think, if she lived in Claudia's body and married Harry, then she could take revenge on the murderer who killed her husband in the real world. The way to do that, she would try everything so that Harry would really fall in love with her. She was forced to cancel her engagement with Harris in order to take revenge on Duke Harry. How did Claudia succeed in conquering Duke Harry's heart?

“Reincarnation? Rebirth? Regression? What bullshit!” These were Julian's words when he realised the world rejected his desire to rest and pushed him toward destruction. He once watched his kingdom fall and endured losing his lover after reincarnation. “I've had enough…” Julian's spirit shattered, and he died fighting the Devils who destroyed the world. He wouldn't fight again. He couldn't endure another life. He shouldn't seek happiness. Yet, once again, he returned. Julian was reincarnated on Earth, Reborn after his failure, and then regressed to before everything happened. He then returned to Avalon, his fallen kingdom. With fractured memories and a jaded heart, he refused to follow the same path. 'This time, I will stop her death.' But, [◊ Awaken, My Dear Child, you can still save Avalon! ◊] The Goddess Solaria wouldn't let him rest.  [◊ I will grant you the power to change your fate. ◊] Solaria granted Julian a special Title and an SSSR Rank Class. A title granted to one existence. The Heir of Shadows.  The 13th Divine. Class Awakened: Shadow Mancer (SSSR) • The one who controls all shadows and summons unique monsters of unequalled strength and potential. Title Gained: Heir of Shadow  • Unlocks a unique growing class and increases resistance to corruption by 100% In the same world that he despaired and failed, Julian was given a third chance. In the same world that would soon collapse, he swore to survive and save her life. He would summon an army of invincible shades! —------ The MC will be a Summoner/Necromancer/Mage primarily and will NOT use swords or spears. His main weapon is a wand, although he won't be weak physically due to constant training. He will NOT be at the same level as someone who evolved and gained a physical type class. This doesn't mean he will be weak—it just means he won't be able to do everything like some boring and overpowered characters who ruin the entire class fantasy. —------ Please show your support. This is a novel for the WSA 2025 Competition. This is the Novel Discord: https://discord.gg/95KPzwhXrD

Life in a noble house isn’t all luxury. Luan Meskevela never expected to wake up as the third son of a powerful duke. But when he’s transported into the world of Sigil Online, he finds himself gifted with two rare and powerful Sigils—abilities that make him a force to be reckoned with. Now, Luan's got more than wealth on his mind. He’ll charm a priestess, exploit a merchant guild, and maybe even befriend a spirit or two—if it gets him a better vintage of wine. With a mix of charm, wealth, and newfound power, he courts beautiful women, explores the world around him, and builds connections that could shape his future. Yet, beneath the surface, political intrigue and family rivalries threaten to disrupt his carefree life. In this new world, Luan plays for the thrill, not just for power. But as he enjoys the perks of his life, he soon realizes that every decision has consequences, and the people around him may not always be what they seem.

Leo, an engineer, was Isekai'd across to another dimension. The one summoning him meant for it to be like every other isekai--get a body and some cool powers and right an ancient wrong. But the ritual is messed up, and Leo goes over with a loan shark and his minions--who start building an evil Isekai empire. Meanwhile, Leo gets stuck in a forest, where he befriends a defective dragon and rescues a stuck-up elf princess that got her whole team killed. Now, he needs to work to get himself and his team up to snuff, to be able to move back to the path that was supposed to be set for him, by one method or another. And then he needs to put all his skills as a gamer and engineer to work to build his... fantasy empire [Litrpg, significant and meaningful rules and options for both character and settlement growth, base-building/empire-building, portal fantasy, adventure, intelligent MC, no sex, no harem, some slice-of-life and found family.]

Risa wakes up in a ruined world and the last thing she remembers is dying on a high risk undercover mission—then nothing. Now, she finds herself in a decrepit barn, accompanied by a beautiful yet disheveled white-haired woman and two terrified children. Before she can get any answers, danger comes knocking. In a world where only the ruthless survive, Risa will have to decide—how far is she willing to go to protect the people she’s sworn to keep safe?

``` Keira Olsen menikah, tapi dia tidak menyangka bahwa suaminya yang tiba-tiba itu ternyata adalah pria terkaya! Dia adalah putri tidak sah yang tidak bisa diakui. Dia sudah merangkak dan berjuang keras sejak kecil, berjuang untuk bisa bertahan hidup. Dia adalah anak takdir, yang berdiri tegar dan perkasa. Keduanya berasal dari dunia yang sangat berbeda dari segi status. Semua orang menunggu Keira diusir keluar pintu, tapi yang mereka dapatkan hanyalah postingan dari pria terkaya di akun media sosialnya: "Istriku yang terkasih, bisakah kita tidak bercerai?" Semua orang bingung. [Pemeran Wanita Kuat, Undercover, Penguasa, Konfrontasi Kuat, 1V1] ```

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Kratonia, formerly known to humans as “The moon” consists of two different societal sectors - The mega city of Earthrise, and The Farside. When a hotshot Earthrise vigilante is sent over to The Farside as an undercover agent, he learns that The Farside people may not be as bad as the Earthrise elites want society to think they are.

Kaen Blaze, the strongest warrior in history, found himself at the forefront of Demon invasion. However, despite his devotion and strength, he was betrayed by his own people for peace! Regressed to his 15-year self, he found himself in the past with a second chance, however, with a price to pay. Now, with his previous life's experience, he'd strive for strength to not let the future repeat itself, destroy the people who betrayed him, conquer all the empires, build a unified nation that can resist the demon invasion this time. With his secret organization, Sovereignty and his powerful subordinates, he'd grow and conquer everything in this life!

A simple daughter of a Baron, Silvia is sold into a marriage with a sickly duke—a union that proves devastating when the duke dies immediately after the wedding, branding her with the cursed title of widow. If that weren’t enough, her brother-in-law harbors lustful desires for her, insisting she become his mistress. Desperate to escape the gilded prison of the palace, Silvia’s every attempt at freedom is met with increasing hostility, chipping away at her sanity. Her spirit wanes as the walls close in, and hope feels like a distant dream. But then, her life takes a sinister turn when she crosses paths with someone she wishes she never had. Will Silvia ever find happiness again? Will she reunite with her true love, or will the merciless beasts of society consume her, piece by piece? (Warning: May contain Themes such as R*pe, Sui*ide, Prostitu*on)

In order not to bring the wrath of the Galwynn Empire Duke upon their kingdom, the Everia King gave out his daughter as a potential bride. In a world full of power-thirsty rulers, nowhere was safe. Hareton Sullivan, the bloodthirsty Duke has eyes for the baker's daughter only but the political truce between him and the Everia King must stand. Will Princess Marcella Dominic allow the Duke's heart to be stolen by the commoner's daughter? What will Victoria do when she finds out that the Duke is heartless and cruel?.

When Special Agent Celeste Carter goes undercover to infiltrate the deadly DeLuca crime syndicate, she never expects to find herself drawn to the enigmatic and dangerous Adrian Russo—the heir to the empire she’s sworn to take down. As she gains his trust, their game of cat and mouse turns into something far more dangerous: an undeniable connection neither of them can ignore. But when a shocking revelation shakes the foundation of everything they believed, Celeste and Adrian must choose between duty and desire, loyalty and betrayal—before the truth destroys them both.

serena is the protagonist. a journalist who enters a mysterious mansion and on her edge to reveal secrets of the mansion. she's tangled with the terrible Duke of the mansion but still stands to uncover the truth of the past as if her life depends on it. the duke is a man whom everyone knows as cruel, cold, mysterious, dangerous ghost. but the Duke himself never leaves the mansion so how they know about him?

Lana Denver is a secret undercover girl for an FBI agent Charles Gregory. She believes she owes him her life so in return, she decides to be his secret undercover girl, recieving crucial and vital information from criminals through her body, betraying them and even selling them out. She’s been doing this for years, making Charles the golden Cop, everyone thinks he’s such a genius, for always solving cases and gaining outrageous leads. Lana has been under the protection of Charles until he gave her another job, that was to get information from a deadly man known as Ricardo Borrelli. Lana never knew Ricardo was a ruthless mafia boss. With her sexy body, she got information out of Ricardo and when she did, after a night well spent, she slipped out the next day and sold him out to Charles and in seconds, he had police swarm in, warranting an arrest for him and his gang. Ricardo knew the snitch couldn’t be none other than Lana and he swore to track her down and make her pay. But Charles protection over Lana was strong or so he thought.

[Mature content] In the arcane duchy of Echt, where ancient secrets slumber and whispers of the unknown lingers, Yuki Adlerian has lived her entire life shrouded in mystery. Her past is a shady mess that she tries to uncover by all means possible. When the enigmatic Duke of Echt suddenly returns to the duchy after many years, Yuki’s simple existence is disrupted. As the Duke’s presence stirs the long-dormant secrets of the duchy. Yuki’s own truth begins to unravel. Strange occurrences and whispered stories force Yuki to doubt her very existence, meanwhile, the duke’s piercing gaze seems to hold the answers to all Yuki's doubts. As the mysteries unfold, Yuki must confront the darkness within herself and face the ultimate revelation; she is more than just a mere human girl. And the Duke’s arrival marks the beginning of a battle for the duchy’s very soul. Will Yuki embrace her true identity? Or will the shadows of her past and her fate consume her, dooming the duchy to an eternal darkness!