How to Summon a Demon with a Signature

Choa was contentedly managing her serene, typical café… until one fateful day when she signed a bank statement— inadvertently summoning a demon. The demon, Jinhyuk, appeared in the most absurd fashion and proposed a contract: rather than claiming Choa’s soul, he would obtain spiritual energy through sexual intercourse. "By intercourse… how far do you mean?" "Shall we find out?" As Choa engages in intense exchanges of energy with a playful demon and faces unexpected visits from other demons— her previously tranquil daily routine is completely turned on its head!