Reflecting on the past, Uchiha Indra, the ancestor of the Uchiha clan, had to kill two of his closest friends in a fit of rage to unlock his Mangekyo Sharingan. His younger cousins would one day tearfully kill their loved ones to unlock their Mangekyo.
Obito, that brat, witnessed his beloved Kakashi digging into the heart of his beloved Rin, and in his heartbreak, awakened his Mangekyo.
Uchiha Itachi? Needless to say, his best friend, the curly-haired Shisui, committed suicide by jumping into a river in front of him. In immense grief, Itachi unlocked his Mangekyo.
With Indra's chakra, even a pig could awaken the Mangekyo.
The above are the proper ways to unlock the Mangekyo.
"Can someone explain to me, what the hell is this?"
Uchiha Gin sat alone at the hot springs, in a pose reminiscent of a thinker. His sculpted body was exposed to the air, and as a gust of wind lifted the towel around his waist, the sudden chill interrupted his thoughts.
Just moments ago, Uchiha Gin had been surrounded by a group of demon-like women. Realizing his long-guarded purity was about to be lost, fear overwhelmed him, and something snapped in his mind.
His brain's self-defense mechanism triggered, and he instinctively activated his Sharingan, using a simple genjutsu with it.
Unexpectedly, the effect was dramatic. The moment the women locked eyes with him, it was as if they remembered something terrifying. Screaming, they fled, leaving Uchiha Gin behind.
Hopefully, the people outside aren't blinded by the sight of those naked women.
"My three tomoe? Where did you hide them? I should have six in total between both eyes."
The surface of the hot spring was as still as a mirror, reflecting Uchiha Gin's confused face. He stretched his hands toward his crimson eyes, but aside from confusion, there was nothing.
Uchiha Gin discovered that the tomoe in his Sharingan had vanished.
However, even though the tomoe were gone, his ocular power had surged considerably.
Feeling the immense power in his eyes, Uchiha Gin was baffled. Could sacrificing the tomoe increase his eye power?
"Wait!!!"
Suddenly, he recalled something. This tomoe-less Sharingan seemed familiar. He had seen it on that small TV screen, vividly etched in his lost memories.
"Wait, does this mean I unlocked it?"
This Mangekyo Sharingan awakening seemed way too casual.
Uchiha Gin had imagined many ways for himself to unlock it, even considering killing his dear uncle Uchiha Tajima.
Snapping back to reality, Uchiha Gin decided to test whether his missing tomoe were just a glitch, like a game character not loading correctly.
He deactivated and reactivated his Sharingan repeatedly, and during this process, his three tomoe surprisingly reappeared.
"As I thought!"
Uchiha Gin calmed his heart and poured chakra into his Sharingan. As a cold, dark aura surged, he could clearly feel his eyes transforming, with a new power brewing within.
"Mangekyo Sharingan, awaken!"
As Uchiha Gin's thought rose, the tomoe in his eyes spun rapidly, merging into the black center.
Thus, the simplest Mangekyo design ever in history was born.
Finally, it had arrived, and he hadn't given up hope.
Tears welled up in Uchiha Gin's eyes, but they were not for anyone else. They were for himself.
Having been tortured by Uchiha Itachi for 72 hours straight, he didn't dare to recall any of it now.
Caught up in his emotions, he sniffled, recalling the skill he'd earned at great personal cost, one that was finally going to be useful.
With trembling hands, he reached into his system inventory and pulled out the dusty Tsukuyomi skill card.
Blowing off the dust carefully, he let the skill, which had cost him so much, see the light of day again.
"Learn!"
With a pounding heart and shaking hands, Uchiha Gin held the Tsukuyomi skill card high and shouted, "Genjutsu: Tsukuyomi, learned!"
The cold voice of the system echoed, but its content made Uchiha Gin feel warm inside.
"Huh?"
The Tsukuyomi skill card dissolved into a ray of light, merging into Uchiha Gin's eyes.
Startled, he saw in the reflection of the hot spring that his plain, tomoe-less Mangekyo had changed.
Now, his Mangekyo had transformed into the shape of a shuriken, slowly spinning and emitting a chilling aura.
"It actually visualized the Mangekyo I loaded."
Uchiha Gin could clearly feel that his Mangekyo's abilities had changed to match Itachi's, with Amaterasu in his right eye and Tsukuyomi in his left.
He tested switching between abilities, watching as the shuriken pattern faded and his eyes returned to the plain, tomoe-less Mangekyo.
However, when he tried communicating with this new Mangekyo, the chakra he poured into it disappeared without a trace, as if into a black hole.
Uchiha Gin thought for a moment and realized his newly awakened Mangekyo seemed to be a blank slate. But at least he could use the abilities of the Mangekyo he'd loaded.
Unfortunately, all he had was Tsukuyomi and Amaterasu from Itachi, and he wasn't sure if he could swap in different eye patterns for new abilities.
"Uh???"
As Uchiha Gin was considering where to get more Mangekyo abilities, his right eye twitched. A familiar yet strange sensation made him frown.
As energy gathered in his right eye, Uchiha Gin felt a slight sting, and the next moment, Amaterasu was pushed aside.
Simultaneously, a new pattern appeared in Uchiha Gin's right eye.
Looking at the new triangular pattern reflected in the water, Uchiha Gin felt a wave of sadness. This was the final legacy left to him by Uchiha Igaku.
"Spectre," the power left in Igaku's remaining Mangekyo.
Though it had once been controlled by Black Zetsu, its true ability was not weak.
Channeling chakra into this eye, Uchiha Gin felt the spirit of Spectre. A smile crept onto his face as he thought, "Old man, I'll make sure your power shines across the ninja world."
As he delved deeper into the Mangekyo left by Uchiha Igaku, the true abilities of Spectre started to surface. In its first stage, it could manifest as a shadow clone with some degree of self-awareness, though mute and rigid in behavior.
In its second stage, Spectre could fuse with its user, enhancing all stats and turning them into an one man army warrior.
Wasn't this the transformation Uchiha Gin had long coveted?
He chuckled to himself. Next time, he'd show them his true transformation!
Spectre could be categorized as a space-time jutsu, with every stage of its ability involving the manipulation of space.
In comparison, it was far superior to Amaterasu.
"Gin!"
"Gin-san!"
As Uchiha Gin was lost in his fantasies, two women rushed over, draped hastily in their bathrobes.
Their intent? To catch a glimpse of some "action."
"Hikari, Haruka..."
Hearing the two call out his name, Uchiha Gin quickly deactivated his Mangekyo and returned his eyes to their normal black state.
Puzzled, he watched the two girls rush toward him, but the sight made him freeze. His nose started to bleed.
Under their robes, they were completely naked.
"My life... no regrets."
Uchiha Gin crossed his arms and lay down peacefully on the ground, letting the blood flow from his nose.
The first to arrive was Hikari. Her short, cherry-red bathrobe clung to her body, with her wet hair sticking to her curves, soaking through the thin material and offering a glimpse of what lay beneath.
She swiftly knelt beside Uchiha Gin, her hands wandering over his exposed body, her lips quivering with drool and her face flushed. As she touched him, she muttered, "Gin, are you okay? Where's the enemy?"
Enemy? Her eyes were locked on the towel around his waist—could the enemy be hiding in his pants?
"Gin-san!"
The weaker Uchiha Haruka arrived late, a flicker of regret in her eyes for having missed the prime spot.
Wearing a long, sky-blue bathrobe, her purple hair was tied up, and the split in her robe couldn't conceal her well-developed body. The sight of her slender legs from the side was captivating.
Seeing that Uchiha Hikari had taken the best position, Uchiha Haruka knelt beside Uchiha Gin as well.
She gently lifted his curly-haired head, placing it on her soft, white thighs, and whispered in his ear, "Gin-san, feeling better now?"
The warmth of her breath brought Uchiha Gin back to consciousness. Feeling the wandering hands on his body and the soft thighs beneath his head, Uchiha Gin showed his respect by stiffening slightly.
"Huh? There's really an enemy hiding in there?"
Uchiha Hikaru's eyes changed, realizing things weren't so simple.
"Tch! Wait, what are you all messing around with?"
Fully awake now, Uchiha Gin grabbed the guilty hand of the girl just before she could reach a forbidden area.
"Gin-san, we heard strange screams earlier."
Seeing Uchiha Gin sit up, Uchiha Haruka, who had been kneeling, stood up with a bit of disappointment, then looked at the confused Uchiha Gin and said:
"We also sensed a strong surge of chakra coming from here."
Uchiha Hikaru withdrew her hand discreetly, her expression turning serious as she said:
"That..."
Uchiha Gin scratched his curly hair and thought for a moment before explaining:
"Just now, a peeping tom was caught spying on women in the hot springs."
"Ugh, some people are just the worst!" Uchiha Hikaru said angrily. But peeping on men is okay?
"What did the culprit look like?" Uchiha Haruka asked curiously.
"Uh, it was a white-haired old guy wearing a red vest and a forehead protector with the word 'oil' on it. He looked as sleazy as they come," Uchiha Gin quickly made up a fitting description, sounding completely convincing.
Several decades later...
"Achoo!"
A sleazy man holding binoculars sneezed hard, wiped his nose, and muttered in confusion:
"Who's thinking about me? Could it be the girls from Konoha?"
Recalling the beautiful ladies of Konoha, the man shed a tear of sorrow.
"Sigh... I really want to go back, but that guy's still around. If I go back, I'll get drilled again. Better keep wandering a bit longer..."