In order to accompany his asthmatic brother Hoshino Ayumu (voiced by Ohashi Ayumu) to the countryside for recuperation, Hoshino Kazuma (voiced by Asanuma Shintaro) resolutely gave up the school course and came to the quiet and peaceful Yamabiko Town. Who knows, not long after arriving, an unexpected incident that made Kazuma's heart beat faster happened-he kissed a strange girl named Nakatsugawa Hatsu (voiced by Nakamura Eriko). Although Nakatsu looked indifferent, from then on, Kazuma became the focus of her eyes that she could not move away. In the town, there live all kinds of simple and kind people. The shy shrine witch Kammoto Enka (voiced by Shimizu Ai), the arrogant girl Hinata Ibuki (voiced by Aoba Ringo) who witnessed the unexpected kiss, the mature and steady big sister Fujido Yu (voiced by Takahashi Tomoaki), etc. Surrounded by these cute girls, can Kazuma stick to the original promise?