Arriving at an all-girls high school with zeal, Naoki Sakura is excited to begin teaching a first-year class. As an energetic homeroom teacher, he's determined to build authentic connections with his students and support them through any issues they may face.
However, Naoki soon finds himself faced with three students who have vastly different personalities. Yuna Sakurai is awkward and prone to accidentally revealing her undergarments. Minori Hinomoto is exceptionally strong, while Shizuka Aoi can be confrontational and is openly gay.
As each student struggles with their own personal obstacles, Naoki must navigate a series of strange and sometimes uncomfortable situations.