Kazuma Hoshino moves with his weak and ill little brother, Ayumu Hoshino, to the countryside so Kazuma can take care of Ayumu better. The two plan to board at their father's inn along the way, but get lost in the woods. Kazuma stumbles upon Ui Nakatsugawa (voiced by Eriko Nakamura) and accidentally kisses her while trying to get across a pond. When Ayumu and Kazuma reach their destination of Yamabiko, a small country town, Kazuma then learns that Ui will be attending the same school as him. As Kazuma starts school while taking care of his brother, more encounters occur between Ui and Kazuma. Though the relationship between the two is tense and awkward at first, their relationship will change into something more with time. What will happen between Kazuma and Ui as time unfolds in this countryside love comedy?