The story describes a black and gray kitten who lost her mother and couldn't find her way home. When she was exhausted, she happened to meet a little boy who fell down. From then on, she was temporarily taken care of by the boy's family. Because the boy's apartment is not allowed to keep pets, the family had to do everything they could to prevent the neighbors from discovering the existence of the kitten. However, they couldn't find the owner and fell in love with the kitten. After going through certain things, the family finally moved to a new apartment and started a new life.