Hatsune joined Kitsuka High School Dormitory No. 1, located at the top of a large hill. The place is a little dilapidated, far from the ostentatious luxury of the famous dormitory number 2. Which does not prevent the high school student, surrounded by classmates, each more original than the last, from embarking on exhilarating adventures such as succeeding in taming the capricious dog in the dormitory, devouring as much flan as possible or even managing to meet the mysterious person in charge of the place, so difficult to meet. All while trying to obtain passable grades in complex subjects like English or physics... Tough, tough life as a high school student!