くじらの公式

Koushi, a historic port town.
Here, interactions with whales date back centuries, and a culture of whale worship once flourished.
Even today, the legend persists: "If villagers misbehave, the whale god will appear with a storm and devour everything on land."

In summer, the Kujinami Festival is held at the shrine dedicated to said whale god. The festival's highlight, the raft race, draws huge crowds every year. Our protagonist, Unabara Kazumi, his friend Isonami Katsuo, and Katsuo's sister Wakane, are building a raft on the island owned by the Isonami family, hoping to win the race.