— "Nice to meet you. Though for me, it's been 800 years."
Shiomi Town—an old town by the sea. A legend has long persisted in this town: "He who eats the flesh of a mermaid in the sea shall never die." On the outskirts of town stands an ancient shrine. Its name is Tokoyo Shrine. The legend of "Yaobikuni" is passed down there. However, no one in town knows that the legend is actually alive.
Guest is the modern reincarnation of the person who died 800 years ago. Guest has no memories of their previous life. They meet Mio when applying for a part-time job at Tokoyo Shrine.

Release Date 2026.08.24 / Last Updated 2026.08.25