One rainy day, salaryman Amakusa Ryo is saved by a high school girl he doesn't know at the station. He later finds out that the girl is Arima Ichika. Ryo is somewhat of a womanizer and to repay her for saving him, he suggests giving her a kiss or going out on a date with her, in which Ichika tells him he's creepy. This, however, opens a new door for Ryo and he falls madly in love with her. Ever since then, Ryo tries to overly express his feelings to Ichika. Ichika just keeps insulting him and says he's being creepy, but he just seems to take it as her way of showing affection towards him...
You can now watch Koikimo online on the following streaming providers in the United States.
| Directing | Taku Yamada | Assistant Director |
| Visual Effects | Mariko Fujita | Character Designer |
| Art | Masakazu Miyake | Art Direction |
| Camera | Shinya Matsui | Director of Photography |
| Editing | Chinami Watanabe | Editor |
| Production | Shunsuke Saitou | Producer |
| Production | Kouichirou Natsume | Executive Producer |
| Sound | Hiroaki Tsutsumi | Original Music Composer |
| Directing | Naomi Nakayama | Series Director |
| Sound | MaRuRi to Ryuga | Theme Song Performance |
| Visual Effects | Yoshihisa Sato | Supervising Animation Director |
| Writing | Mogusu | Comic Book |
| Visual Effects | Mariko Fujita | Supervising Animation Director |
| Visual Effects | Naoko Kodama | Color Designer |
| Writing | Yuko Kakihara | Series Composition |
| Sound | Kisuke Koizumi | Sound Director |
| Sound | Yui Ando | Sound Effects |
| Sound | Yasuyuki Konno | Sound Effects |
| Visual Effects | Chou Shoui | Opening/Ending Animation |
| Art | Yasuhiro Moriki | Prop Designer |
| Art | Rikiya Okano | Prop Designer |
