My Devil's Crystal Palace

My name is Ye Xiao, of course you can also call me Abel Astaroth, an ordinary time traveler, and now a pure-blooded demon.

His eldest brother is Beelzebub, one of the four great devils.

Sona is his fiancée and Rias is his childhood sweetheart.

After awakening the memory and activating the system, I found that there is more than just the Devil High School in this world.

Like cursed spirits, evil spirits, monsters, disobedient gods, etc.

However, this does not prevent him from having followers.