Amane woont alleen in een appartement, en het mooiste meisje van de school, Mahiru, woont vlak naast de deur. Ze hebben elkaar bijna nooit gesproken, tot de dag dat hij haar op een regenachtige dag in nood ziet en haar zijn paraplu leent. Om iets terug te doen, biedt ze hem hulp aan in het hele huis, en langzaam begint een relatie te bloeien naarmate de afstand tussen hen kleiner wordt...
| Production | 三浦史 | Producer |
| Production | 佐藤潤 | Producer |
| Production | Daiki Tomihara | Producer |
| Production | 金子広孝 | Producer |
| Sound | Masayoshi Ōishi | Theme Song Performance |
| Sound | 石見舞菜香 | Theme Song Performance |
| Art | 大出高士 | Assistant Director of Photography |
| Art | 前塚太一 | Assistant Art Director |
| Sound | 安藤由衣 | Sound Effects |
| Sound | 小笠原頌 | Sound Mixer |
| Sound | Yuya Sasaki | Music Director |
| Crew | 松田陵平 | Special Effects |
| Editing | 深澤芽衣 | Assistant Editor |
| Crew | 今泉賢一 | Technical Supervisor |
| Visual Effects | 関口卓弥 | 3D Artist |
| Visual Effects | 牧野泰大 | 3D Artist |
| Visual Effects | 星野拓海 | Compositing Artist |
| Visual Effects | 山口真樹 | Compositing Artist |
| Visual Effects | 森兼梨緒 | Compositing Artist |
| Visual Effects | 片山雄太 | Compositing Artist |
| Visual Effects | 淵上誠矢 | 3D Artist |
| Visual Effects | 斎藤威志 | 3D Artist |
| Writing | 大知慶一郎 | Series Composition |
| Sound | 日向萌 | Original Music Composer |
| Art | 三宅昌和 | Art Direction |
| Editing | 丹彩子 | Editor |
| Camera | 上條智也 | Director of Photography |
| Visual Effects | Yukiko Ario | Color Designer |
| Directing | Wang Lihua | Series Director |
| Art | 新谷真昼 | Prop Designer |
| Visual Effects | 斎藤威志 | CGI Director |
| Sound | 明田川仁 | Sound Director |
| Sound | 有馬由衣 | Music Producer |
| Production | 高橋敦司 | Executive Producer |
| Production | 武井克弘 | Executive Producer |
| Production | 長瀬奈津子 | Executive Producer |
| Production | 伊藤裕史 | Executive Producer |
| Production | 外川明宏 | Executive Producer |
| Production | 中路亮輔 | Executive Producer |
| Production | Ryohei Yamashita | Executive Producer |
| Production | 田口翔一朗 | Producer |
| Production | 松本一貴 | Producer |
| Production | 三輪靖史 | Producer |
| Visual Effects | 野口孝行 | Character Designer |
