Chuuya and Dazai date, Dazai hasn't answered the phone for a week, and although he warned Chuuya in advance that he would be busy, but Chuuya still felt anxious and decided to come to Dazai's, where he found the house empty and the door to the basement is open. So Chuuya finds that his boyfriend is a serial killer. Dazai's basement is full of strange stuffed people, and parts of dismembered bodies lie in refrigerators, There is a stove where something is boiling in a pot and air conditioners.