Choa was peacefully running her quiet, ordinary café… until one day, she signed a bank statement— and accidentally summoned a demon. The demon, Jinhyuk, summoned in the most ridiculous way, offers a contract: instead of taking Choa’s soul, he’ll receive spiritual energy through sexual intercourse. “By intercourse… how far do you mean?” “Shall we find out?” From intense exchanges of energy with a mischievous demon to the sudden visits from unexpected demons— Choa’s once peaceful daily life is turned completely upside down!