Rebirth of the Phoenix Emperor

Teacher, I'm so embarrassed!"Hoo~Hoo~Hoo~"On the field, Naruto and Sasuke were panting and sweating."He's so strong!"Naruto looked at Shiro with a serious expression.After he joined the battlefield, he was able to fight back and forth with Bai through cooperation with Sasuke.

3000 chapter in, and I'm still hooked. Once he leaves the small world, the stories get so much better pacing.

The power scale is really ambiguous. There’s a set power scale, they even emphasize how it’s been established and recognized for a long time but nothing seems to follow it. Just have the characters have a higher level.The mc tries to always stay positive even in terrible situations and it starts out endearing but snowballs into annoying pretty fast.