Infinite Sasuke

Sasuke Uchiha started out as a three-year-old, but ended up being bound to an infinite pupil-boosting system, which could grant the host a brand new pupil power every other year. Ever since, when Sasuke was four years old, he got Kagura's Heart Eye, which allowed him to perceive everything in the outside world even if he closed his eyes. The appearance of Kagura's Heart Eye also made Sasuke's hair turn red, and he was able to use the Uzumaki clan's sealing chain. At the same time, Sasuke, like Karin, could help others recover chakra by being bitten. Of course, Sasuke wouldn't actually get bitten. When he was five years old, Sasuke's Kagura Heart Eye was upgraded again and became the Kagura Heart Eye. This Kagura Heart Eye was even more powerful, and Sasuke's hair turned purple as a result. When he was six years old, Sasuke gained the Kagura Heart, his power became stronger again, and his hair turned golden. When he was seven years old, Sasuke obtained Kagura's Heart Eyes and finally became invincible. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.