| I've Got To Take The Laundry In | | Naoya SANUKI | 2016 | Nippon Animation | 2018 |
| Iizuna Fair | | Sumito SAKAKIBARA | 2021 | Nippon Animation | 2022 |
| Imamura Store | | Aya TSUGEHATA | 2011 | Nippon Animation | 2013 |
| In Inertia | 愚図の底 | Takuto KATAYAMA | 2016 | Nippon Animation | 2016 |
| In The Big Yard Inside The Teeny-Weeny Pocket | ミニミニポッケの大きな庭で | Yoko YUKI | 2022 | Nippon Animation | 2023 |
| In This Corner Of The World | この世界の片隅に | Sunao KATABUCHI | 2016 | Nippon Animation | 2017 |
| Indoor Days | | Asaki NISHINO | 2019 | Nippon Animation | 2019 |
| Interstitial | | Shunsaku HAYASHI | 2017 | Nippon Animation | 2018 |
| Into A Landscape | | Chihiro YAMANAKA | 2023 | Nippon Animation | 2024 |
| Inu-Oh | 犬王 | Masaaki YUASA | 2021 | Nippon Animation | 2022 |
| Invisible | | Zeng Liang LIN | 2022 | Nippon Animation | 2022, 2022 |
| It's Time For Supper | | Saki MURAMOTO | 2013 | Nippon Animation | 2013 |
| JAPANESE CHESS | 将棋 | Moe KURIBARA | 2016 | Nippon Animation | 2016 |
| Jinxes | | Yuki MAEHATA | 2018 | Nippon Animation | 2018 |
| JOHNNY THE EEL | うなぎのジョニー | Naoyuki NIIYA | 2021 | Nippon Animation | 2023 |
| Jubilee | | Koji YAMAMURA | 1999 | Nippon Animation | 2014, 2004, 2003 |
| Kami Usagi Ropé – The Last Day Of Summer Vacation | 映画「紙兎ロぺ」 つか、夏休みラスイチってマジっすか!? | Yuji UCHIYAMA, Ryosuke AOIKE | 2012 | Nippon Animation | 2013 |
| Keep Forgetting | | Takahiro SHIBATA | 2019 | Nippon Animation | 2019 |
| Krasue | | Ryo HIRANO | 2021 | Nippon Animation | 2022 |
| L'Oeil du Cyclone | | Masanobu HIRAOKA | 2015 | Nippon Animation | 2016 |
