Despite being a gay college student, Rikiya Higuchi had never experienced romantic love. Feeling brave, he signs up for a gay dating website with the intention of finding a compatible partner for a future together. Rikiya takes an interest in a man who contacts him first, and agrees to meet up with him in person. Unfortunately, it turns out to be a set-up, and Rikiya wakes up in front of a camera, being forced to have sex against his will. Distraught and fearing for his safety, Rikiya begs for help and suddenly a stranger appears to rescue him.
By chance, Rikiya summons Endo Guar Adroone, a high-ranking demon, and his bird-like butler. Endo forcibly takes away Rikiya's braces and claims him as his contractor, offering to grant any wish in return. Instead of asking for supernatural help in finding love, Rikiya only wants to go back home so that Endo and his butler may return to their own world. However, Endo is avoiding an arranged marriage proposal and thus Rikiya must spend much more time than he imagined dealing with the arrogant demon.
