A little boy, Kazuma Hoshino, and a girl stand in a forest; the latter of whom is upset that the boy is leaving. The boy cheers her up and promises to stay friends. Kazuma, now a teenager, awakens and finds himself sitting across from his brother Ayumu on a train. As Ayumu gazes out the window in awe, Kazuma is surprised at how much the scene resembles the one in his dream. The boys get off in Yamabiko Town, catching what they believe to be a bus to Yorozuyo Inn, a lodge where they are to live. Having boarded the wrong bus however, Kazuma and Ayumu have no choice but to wait for the correct bus at the next stop...