Lee Shin-hee works tirelessly as a waiter at a bar to support his father's needs and pay for his younger brother's hospital bills. However, he often makes mistakes on the job because it doesn’t fit his personality. One evening, after his shift, he stops by a store to buy cigarettes and stumbles upon a mysterious bead, which he accidentally breaks. In that instant, a goblin appears and transports him to an unknown place. There, the goblin, named 'Oh Hui', unexpectedly declares Shin-hee to be his bride and shows a peculiar interest in him.