Rintaro Aida (Yuki Yamada) is a handsome teacher. One of his students, Sachiko Sakurai endures unpleasant situations everyday. The identity of the person who causes the unpleasantness is not known. Rintaro Aida always saves her from those situations. Because of this, Sachiko Sakurai begins to have feelings for her homeroom teacher. What Sachiko Sakurai does not know is that Rintaro Aida likes her very much and he is behind the unpleasant situations and he does this to save her.
Cast
 |
 |
 |
 |
 |
| Yuki Yamada | Shiori Akita | Miu Tomita | Mayuu Yokota | Shieri Ohata |
| Rintaro Aida | Sachiko Sakurai | Nobuyo Maruyama | Yua Natsume | Nana Shiratori |
 |
 |
 |
 |
 |
| Takuya Wakabayashi | Keito Tsuna | Tomoya Maeno | Rio Yamashita | Erika Toyohara |
| Tadashi Takenouchi | Ken Yahagi | Shinichiro Mori | Megumi Shiina | Hoshi Yamamoto |
 |
 |
 |
| Aoto Watanabe | Jingi Umemoto | Jun Aoyama |
| Kota Inui | Makoto Yazawa | Teacher Onchi |