Akaya Kirihara

In the private Hero High School, where young talents of dungeon explorers gather, Makoto Akaya enrolls, believing in his own abilities. However, upon discovering the gap between himself and his classmates, he realizes that he is the biggest failure in the school. Nevertheless, in the midst of despair, he encounters a skill tree that only he can use, and Makoto Akaya's life begins to change for the better.

In a world destroyed by the emergence of a portal to Another Space (AnoS), which spews out monsters from other worlds, humanity is nearly extinct. To fight this threat, humans created an armor called Relic. In the past, there was a legendary hero known as Rellic N502, who managed to clear 2 AnoS in one day and eradicate 30,000 B+ and A+ level, as well as disaster level, monsters. However, he was killed by Professor Dr. Hades Silk and was held in prison, although he is still alive today. N502's armor, which has extraordinary power and energy but cannot yet be used by anyone, is stored and the case is closed. The focus of the story shifts to Akaya Sinanhomiya, a child who enters Meka Academy. There, he learned how to control and fight monsters using the Relic. Despite initially having average abilities (76% strength and 7.7% energy), Akaya was unexpectedly able to synchronize herself with Relic N502. This unlocks great potential in battles against monsters and reveals the mystery behind the Relic N502's incredible power.

Our protagonist is Kojou Akatsuki, a quiet, honor student whom everyone looks up to. While he pretends to act like an honor student, and a perfect role model for his little sister, Sayaka, he lives and fights desperately the fears of his past. What he looks on the surface, and what he is in real life are the two sides no one knows about, except Kirihara Hana and Yamamoto Sousuke, the duo he met when he first stepped in the grounds of Setsuna Academy, from where his life changed.

Akaya Aitaeru. Ruler of love. Regent of lust. One of the seven rex tenebrai. The southern demon lord. Wherever they went, they always got fear and jealousy thrown at them. But that was alright, because they weren't alone. They had their precious lovers. And then, they betrayed Akaya, leaving them to die alone. "What did I do wrong? Why do you hate me so? I thought we were supposed to live together for eternity…" Before they could even comprehend what had happened, they were reborn into the modern earth. There, they found a book about their last life and - they were the villain?! Once they opened their eyes after a long night of crying, they were Akaya again. Oh, but this time, this time they will do things right! But… Can they forget just what the people they used to love had done to them? Could they trust their decisions? Will they ever even be able to escape from their fate? No matter! With new and old faces appearing all around, Akaya will strive to at least become a villain that does good. Right. This time, they won't have a reason to betray them, because this time they'll be a worthy villain.

Mitsui Kirihara is a young and a successful business woman who hates men. That's right, she absolutely detest man and her clear bias for her female workers can be seen in her company. Nothing in this world can change her opinion of men and she is resolute to stand on her belief that all men are jerk. Tetsuya Hitomi is an heir to the biggest business conglomerate in Asia. He has the world waiting by his side for him but he chooses to be by Mitsuki's side as an assistant. His reason? Nothing much, to him Mitsuki is amusing and she brings variation in his monotonous life. With everything that's going around it's inevitable for them to ignore the spark.