Naruto: The True Shippuden

A young man transmigrates into Gekko Hayate on the day of the Nine-Tails' Rampage. He knows only the original story and has no System or other cheat, yet he swears he will become a being who surpasses Otsutsuki Kaguya.

Final build: Left eye (the Giant Tenseigan on the moon); right eye (a Giant Sharingan created by fusing countless Sharingan)

Ninjutsu: Yin Seal + Shikkotsu Forest Sage Mode + Eight Gates Released Formation + prolonged use of Izanagi with the right eye + Impure World Reincarnation

Six Paths Madara: "Do you want to dance, too?"

Hayate: "Sure! Izanagi and Eight Gates Released Formation: Gate of Death, open!"

Six Paths Madara: "Holy crap, you can do that? I, Madara, declare you the strongest!"