Synopsis
[Jujutsu World]
"Hatake Kakashi? That mysterious Special Grade with a dazzling array of skills?"
[Gojo Family]
"Hatake Kakashi? I hear he used to be Lord Satoru's shadow guard. Seeing him at the Gojo estate is just like seeing Lord Satoru."
"That bastard Kakashi is the one who ran off with Lord Satoru!"
[Jujutsu High Teachers]
"Kakashi? He's very gentle, and very strong."
"A scumbag like Geto Suguru and Gojo Satoru, though he's a little better than them."
[Jujutsu High Students]
"If anyone at Jujutsu High deserves respect, Okkotsu-senpai is one of them, and Teacher Kakashi gets half a point."
(The Naruto portion is very brief and won't affect the experience of readers who haven't read it.)
During the Great Ninja War, Kakashi hadn't had time to find out why Obito had done it when he lost consciousness. The only thing he heard was a voice as soft as a sigh:
"Live well in this new world. Farewell, Kakashi."
When Kakashi regained consciousness, he discovered that he had transmigrated through time and space. This world had no ninjas, only a profession called jujutsu sorcerers.
His body was exactly as it had been when he was ten, and he had another identity: the shadow guard of Gojo Satoru, the eldest young master of the Gojo family. He was also cursed, so if Gojo Satoru died, he would die too.
Kakashi had planned to leave and search for a way back, but when he saw the ten-year-old Divine Child Gojo Satoru, devoid of joy or sorrow, his heart softened. He chose to stay and teach him.
Later... As Kakashi looked at the clingy big cat draped over him, he could only sigh. What had possessed him to think this guy was pitiful?
Gojo Satoru thought there was no one in the world better than Kakashi. But that didn't seem to be the case in Kakashi's heart. There was someone named Uchiha Obito in there. Gojo Satoru had heard the name when Kakashi mumbled in his sleep while unconscious.
"Suguru, Shoko, listen! Kakashi keeps sneaking off somewhere, and he even buys flowers!!!! He won't let me come along!"
"Is Kakashi dating someone?" Geto Suguru said, swatting away Gojo Satoru's hand as it messed with his topknot.
"Dating someone? No way! I won't allow it! That's it, we're going to follow him!"
When the three of them stealthily followed Kakashi into a cemetery, they saw him place a bouquet of flowers on a gravestone, carefully wipe the dust off it, and speak to it with a look of yearning.
Gojo Satoru had lived and eaten with Kakashi since childhood, but he didn't know the person on the gravestone. And so, Gojo Satoru exploded.
"Kakashi! Who is that homewrecker named Uchiha Obito? You've never spoken to me that gently!"
"He's already dead. I'm the only one who can make you happy!"
Additional setting
Kakashi, who had always been short on chakra, discovered that he could convert chakra and cursed energy at a one-to-one ratio, and cursed energy was extracted from negative emotions.
Kakashi was overjoyed. As everyone knows, being a ninja is a miserable profession.
And that was especially true for him, the ninja world's famously unlucky one: his mother died when he was young, his father died when he was five, he witnessed his best friend's death at twelve, then soon afterward ended a comrade's life with his own hands. His teacher died when he was fourteen. Everyone connected to him ended up buried beneath a gravestone. Later, he discovered that his friend had faked his death, and that he'd been going to the grave for nearly twenty years, come rain or shine. He was the ninja world's little cabbage, through and through.
So when Gojo Satoru used the Six Eyes to examine Kakashi's cursed energy for the first time, he blurted out, "Holy shit!"
Ninja World Kakashi: Careful calculations, tactical maneuvering.
Jujutsu World Kakashi: Lock onto the target, then saturate the area with fire.
Theme: Ninjas change the jujutsu world
