Healing a wounded and tired heart with the land of Kagawa and a Mermaid girl? A cohabitation life where if you fall in love, it's over—living with a Mermaid girl, a Country Love Comedy! Sumi, who returned to his birthplace in Kagawa Prefecture after several years, had suffered emotional wounds from his school life in Tokyo not going well. While walking through the land of Kagawa for the first time in a long while, Sumi finds a girl collapsed on the beach. She had no legs, and in their place was a large fin…