Once the five-year prison life was over, the first problem Billy encountered after re-entering the society turned out to be unable to find a place to solve his internal emergency. When the fire burned, Billy broke into a dance rehearsal room to find a toilet. By the way, he "kidnapped" Layla who was practicing dance in the rehearsal room and forced her to act as his temporary girlfriend to see his parents. It turns out that Billy has been telling his parents in his family book for the past five years that he has a very happy life, and he has no choice but to make such a move in order to prevent wear and tear. Layla slowly developed a good impression of Billy, and she helped Billy with all kinds of outrageous lies in front of Billy's parents, winning their favor smoothly. After leaving home, Billy took Layla to the bowling hall he used to go to. Later, he ran into Wendy, a female classmate whom he had a crush on, and was in a hurry. After Billy was released from prison, he had two wishes. One was to continue to weave a lie about a better life for his parents, and the other was to find revenge for the person who made him go to jail five years ago. He finally discovered the latter's whereabouts and was about to start.