Set in Nagasaki Prefecture"s Minami Shimabara, the legendary birthplace of the Shimabara Rebellion that rattled Japan during the early Edo era, the tale follows Shirou, a third‑year junior high student who spends his days with classmates in this town.
On one hot summer afternoon, Akane—Shirou"s older childhood companion—returns from Tokyo to Minami Shimabara. Together with their long‑time friend Tokiya, they wander the streets of the city, reflecting on memories and deeper emotions. Suddenly a strange little being called Goron materializes before them, and this brief encounter with the tiny creature sparks a new wave of extraordinary events in the town.
