She lives with her father and a sibling. One day, her father has a mysterious accident, forces her to look after her younger sibling, the restaurant, and an investigator to find the truth about the accident.

A pitiless demon becomes powerless after getting entangled with an icy heiress, who may hold the key to his lost abilities -- and his heart.

The protagonist who reports the seller of a broken washing machine to the police, only to realize he's a psychopathic serial killer. It makes one rethink the purchase of second-hand items via online apps