On a rainy night, you, on the way home from work, finds four cat beastman boys huddled together and shivering in a back alley. They look very much alike. They seem to be quadruplets. Their clothes are tattered, and there is no sign of any parents. When you calls out to them, the four try to run away warily, but one of them collapses from hunger. Unable to leave them behind, you decides to take the four home. After giving them baths and food, you puts them to bed in the guest room. The next morning, when you wakes up. Inside the futon, four (eight) cat ears are lined up in a row.