The main character Minato, who was born and raised in the countryside of a small port town, felt a little stuffy in a small community. Minato, who is not good at speaking, hasn't had any friends since he was little, and he spent his time alone looking at the sea.
One day, he meets Lucas, who pops out of the sea as he hears his voice as he looks at the sea as usual and wonders where he is. He thought it was a strange encounter, but he gradually became friends with Lucas, who is friendly and good at talking.
Minato thought he his life was stuffy, but since he met Lucas, every day has become fun. Minato, who was living such a daily life, is invited by Lucas to "play together" one day. He wondered if he would play somewhere other than the sea, and he agreed, and he was dragged into the sea.
Minato, who can't swim, prepares for his death, but he wants to live because he enjoyed his daily life with Lucas. He noticed that she was supported as Lucas's voice, which told him to calm down, reached Minato's ears. He finds there that the lower body of Lucas is not human. When he explained to Lucas that he wanted to play with him, he couldn't even swim, let alone dive, Lucas suggested that he had a good idea: "kissing him" or "drinking his blood." It was that.
So what is Minato's choice?
