The story unfolds with an allegorical inspiration from the well-known fairy tale, The Little Mermaid, in which the mermaid princess falls in love with the prince it saves from drowning, with a surprising twist of the mermaid being a young boy…

A high school student named Ji Qing kills his classmate. After being released from prison, he begins working at a funeral home to learn embalming, seemingly to start his life over. During this time, he lives under the supervision of a social worker, Mr. Zhang, for three months. While Mr. Zhang appears ordinary and by-the-book to everyone else, Ji Qing senses something mysterious about him. He sneaks into Zhang’s home to spy on his private life, planning to reveal to him the secrets he has learned from the spirit world.

"Can I be your boyfriend?" The boy hears the man he admires say this to him. However, due to his past as a prostitute, the boy constantly moves from one man to another, always getting abandoned in the end. He decides to leave before this man grows tired of him as well. Years later, the boy meets the man again. The man has changed a lot and seems to have forgot him. The boy hesitates, wondering whether he should rekindle the man’s memory or start a new relationship with him under a different identity...