| Title | Format | Country | Volumes | State |
|---|---|---|---|---|
| I Can't Believe I Slept With You! | Manga | France | 1 | Ongoing |
| I Don't Like You At All, Big Brother!! | Manga | United States | 5 | Ongoing |
| I'm in Love with the Villainess | Manga | France | 2 | Ongoing |
| I'm in Love with the Villainess. | Light novel | France | 2 | Ongoing |
| I'm the only wolf | Manga | France | 5 | Ongoing |
| Ichigo 100% | Manga | France | 19 | Completed |
| Inari, Konkon, Koi Iroha.いなり、こんこん、恋いろは。 | Manga | Japan | 10 | Completed |
| Inō-Batoru wa Nichijō-kei no Naka de異能バトルは日常系のなかで | Light novel | Japan | 7 | Ongoing |
| Inukami!いぬかみっ! | Manga | Japan | 6 | Completed |
| Isshūkan Friends.一週間フレンズ。 | Manga | Japan | 7 | Completed |
| Itazura na KissイタズラなKiss | Manga | Japan | 23 | Unfinished (death) |