At a meeting of the Outdoor Activities Club, Nadeshiko Kagamihara, Aoi Inuyama, and Chiaki Oogaki argue over the definition of a true Yamanashi local. Chiaki mentions the Yamanashi Kids' Stamp Rally, which is unknown to Nadeshiko. The rally involves visiting famous spots in the prefecture to gather stamps; participants who finish the course receive a year's supply of Minobu steamed buns. Drawn in by the massive food reward, Nadeshiko decides to join. Join the Outdoor Activities Club as they tour Yamanashi prefecture to collect stamps and discover what the area has to offer!