I Use Punishing: Gray Raven to Defeat Honkai

While fighting an Envoy, the Sky Garden and the chief's best friend

found the one and only path through the Infinite Death Corridor, but through a twist of fate, they ended up in a world in ruins.

A pre-civilization story with an invincible protagonist.

He changes the tragedy of the pre-civilization era,

while trying to find his way home. One heroine: Elysia.

The protagonist is Alpha's disciple, and he's invincible.