Naruto's Mental Retardation System

As a fan of Naruto, Ye Feng traveled to the world of Naruto Fortunately, there is a super awesome mental retardation system From then on, he became the most mentally retarded person in the ninja world. Uchiha Madara: I, Uchiha Madara, would like to call you the strongest retard Otsutsuki Kaguya: Why is this mentally retarded person so powerful? At this time, Ye Feng said helplessly: How lonely it is to be invincible This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.