Asana Amamizu’s life has changed drastically. With the support of her fiancé Sakuya, she managed to escape the grasp of her abusive family and find refuge with him and his kindhearted mother. This new home presents an opportunity to heal her deepest emotional wounds, but unfortunately, the peace is not destined to last. A classmate investigating mermaid blood has followed its trail right to Asana, and she's determined to dredge up its secrets!