Konoha: I, Who Satisfied the Uchiha Clan

Transmigrating into the Naruto world as a member of the Uchiha clan—and, to make matters more personal, as Obito's older brother—Uchiha Yu might have every reason to feel bitter. Yet he harbors no resentment at all, thanks to a bound notebook system that grants him rewards for every entry he records. A simple note like "No dinner for Obito tonight" triggers a system chime, yielding negative-attribute chakra extracted from Obito's grumbling sleep. But Yu soon sets his sights on a far more satisfying target: Danzo Shimura, the man consumed by paranoia and hatred toward the Uchiha. To his surprise, recording Danzo's dark deeds produces a malicious feedback loop. Because Yu logs these entries using a pair of Sharingan steeped in sinister power, the records undergo a qualitative shift—each logged act now inflicts a stroke of misfortune upon Danzo while granting Yu the accumulating energy of calamity. "All I did was eat a pancake, and I chipped a tooth!" Danzo rages, slamming his food onto the table—only to hear a crisp crack as his wrist gives out. "Impossible! I'm still young!" he howls. After years of persistently documenting Danzo's vilest schemes, Yu's Mangekyo Sharingan evolves to manifest a divine Otsutsuki technique: Misfortune. With a single glance, he can now orchestrate any calamity he desires upon his target. Also known as: I, Uchiha Yu, Danzo's Personal Curse; I Made Danzo Unlucky Again; Sorry, I'm Honestly Not a Jinx.