The seat of the Demon God has never been occupied, many Demon Kings have strived to achieve it Only to fall in failure and along with this, the seat of the Demon King has been vacant for quite some time So now, a mysterious student that is the adopted brother of Iruma goes to school, and who knows? He may even encounter love This the story of Y/n Suzuki Hoshi and how he will pave his way to become the Future Demon God!