Synopsis: I Am the End of the Devil

When Li Wei crossed over, his younger brother Vali ran away, his father was killed by his grandfather, and the lunatic Li Zeweim also ran out of hell, and left him in the underworld alone, and wanted him to be himself in the underworld, the old demon king faction internal response.
At this moment, Li Wei, who thought it was the beginning of the sky, awakened the sign-in system, and since then everything has changed.
This is a story about a man who has evolved towards the ultimate demon, collects his family, integrates the gods, fights the world of exe, and reaches the apex.
"Welcome to the Devil's End~!"
(Comprehensive mix and match world view, the main demon high school, will add some types of moon, Gensokyo, etc.)