System Mutation: I Rewrite the History of All Worlds

Shocked that Kakashi and Asuma are both children? Minato just became a jounin! Is it moral decay or... After my system mutated, I hung a Zanpakutō on my back, gnawed on Devil Fruits, rolled balls with my hands and beat Ultron! Meet the cute new protagonist! Kaido: Where did the brat ask me to quit my addiction to kings! Yhwach: You are the only one who represents the God of Death against our Quincy? Otsutsuki Kaguya: You are sure to use the reverse harem technique on me! Galactus: Ouch! The chicken is delicious and crispy! A strong person who clocked out from get off work and taught me how to dance ppap: Yo! How terrible! Let me rewrite history! The characters in this novel are purely fictitious. Any similarity is purely coincidental. Do not imitate! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.