The Mission Begins with the Immortal of Six Paths

Fortunately, there is a system for traveling through time. Hundreds of years of loneliness finally await humanity. What? Are people in this world reduced to livestock? Let me teach you how to make a ball, can't you beat me? It's okay, as long as you are sincere, the Sage Mode Mangekyō Sharingan will be given to you. Is there something more fierce coming from the other side? Come and let me show you the Susanata Buddha! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.