You were just a delinquent when you were younger, but your grandpa helped you change your ways, and now some weird demon lady is asking for you to come to her school and be a delinquent all over again? This is the tale of one young man with magical powers in the spirit world full of monsters, yokai, demons, and beasts, and he's in a club with the worst of them... Will you be able to survive this school? Will you be able to join any gangs? Will you become a GANG-STAR!?

Ren's Adventure is still continuing. After he lost the last line of his humanity and becoming a dragon race for real. Even he had settled his problem with the Demon Lord of Envy, and a new problem arrived from the report given by Fianna. A new Demon Lord had started to make his move. At the same time, the church had also advanced with their plan using their new weaponry. As for the Demon Lord Union led by Demon Lord of Pride had no sign of movement lately. What will Ren do? How will the world move from now on? All the gears had moved and the chaos is spreading throughout the world. Disclaimer: I don't have the picture on the cover.

Y/N is an average high school student. But will his life stay that way when he unknowingly forms a contract with a demon?