In "Uchiha Reborn: Chronicles of Power," Alex transmigrates into the Naruto universe as Hiro Uchiha a low-key but average genuis, waking up in a pool of blood near the Kanabi Bridge. Quickly adapting to his new reality, Hiro discovers he has a sign-in system that grants him powerful abilities, starting with the Eternal Mangekyou Sharingan. He plans to stop the Uchiha massacre and become strong to fight Kaguya in the future. He has confidence because of the sign-in system and can't wait to acquire other sign-in items.