(Not a harem, single female protagonist, not invincible, not systematic, not brainless)
The protagonist Su Yu travels through the book Naruto and finds the ruins of the Kamigaki clan, which is older than the Otsutsuki clan. He inherits the Kamigaki clan's eyes, which have been passed down from generation to generation. The absolute copying ability surpasses all existing pupil techniques. The protagonist Su Yu is both good and evil, and his purpose is to accumulate strength before the real "darkness" comes.
