| Iyashiiyasare Mama Club | 2016-07-08 | - (3) |
| Iyashi no Megami no Marmot | 2017-09-29 | 6.80 (66) |
| Iyashi no Mahou to Utsuro na Majo | 2014-02-15 | - |
| Iyashi no Mahou to Megami no Itazura | 2014-11-30 | - |
| Iyasare Gohoushi ~Yume no Yakata de Kenja Time!~ | 2009-12-11 | 6.30 (17) |
| Iyaiya Ouji to Katayaburi Shoujo | 2024-12-30 | - |
| Iyaahi no Hokenshitsu | 2024-12-14 | - (1) |
| Iya to Ienai Nyotai Danshi 2 | 2024-06-07 | - |
| Iya Iya Ecchi | 2014-10-05 | - |
| IxSHE Tell | 2018-02-23 | 6.90 (1458) |
| Iwakura Aria | 2024-06-27 | 6.70 (89) |
| Iwaihime | 2016-01-29 | 6.50 (1041) |
| Ivy. | - | - |
| Ivy and Blue | 2022-06-06 | - |
| Ivy | 2014-04-08 | - (1) |
| Ivra to Rogi to Fuyu no Kuni | 2017-12-19 | - |
| Ivory Breeze | 2024-12-15 | - |
| Ivory | 2022-08-31 | - |
| Iveri: The 1.000 Story | 2020-03-14 | - (2) |
| Ivan wa Mita! | 2011-11-20 | - (1) |
| Iudex Inquisitor | 2024-07-07 | - |
| Ittara ***nu Battle Fuck ~Mesugaki Paizuri Haiboku~ | 2021-11-26 | - (2) |
| Itsuya Kaidan | 2020-08-09 | - |
| Itsuwari no Suzu | 2014-01-28 | - |
| Itsuwari no Seibo ~Gibo ni Uwaki Genba o Mokugekisareta Ore wa, Donna Youkyuu ni mo Shitagau Inu to Natta~ | 2025-03-14 | 6.10 (22) |
| Itsuwari no Kyoushitsu | 2005-11-11 | 6.80 (7) |
| Itsuwari no Alkanet | 2010-06-07 | - |
| Itsuwari no Alice -Retold Tale- | 2026-10-03 | - |
| Itsuwari Rapunzel no Tonsoukyoku | 2016-12-14 | - |
| Itsutsugo -Lovely Quintuplets- | 2009-10-28 | 6.00 (14) |
| Itsumo Doori no xx na Nichijou wa. | 2018-07-07 | - |
| Itsuka, Todoku, Ano Sora ni. | 2007-01-26 | 7.70 (233) |
| Itsuka, Kasanariau Ashita e | 1999-08-26 | - (1) |
| Itsuka, Dokoka de ~Ano Amaoto no Kioku~ | 2002-05-24 | - (4) |
| Itsuka, Ano Oozora e | - | - |
| Itsuka no Yoru | 2023-09-26 | 6.00 (24) |
| Itsuka no Sora | 2001-09-07 | - (3) |
| Itsuka no Mirai | 2017-10-27 | - |
| Itsuka no Memorajxo ~Kotonoha Amrilato~ | 2019-03-15 | 7.60 (112) |
| Itsuka no Kaze ga Fuku Basho e | - | - |
| Itsuka Yumemita Fuukei de | 2007-08-18 | - (3) |
| Itsuka Tenma no Kuro Usagi Portable | 2011-12-22 | 6.50 (6) |
| Itsuka Shouri no Otakebi o | 2021-05-03 | - (1) |
| Itsuka Okaeri no Kotoba o | 2008-12-29 | - |
| Itsuka Natsu no Hi | 2017-11-07 | - |
| Itsuka Modoru Keshiki no Naka ni, Kimi no Sugata ga Arimasu you ni | 2013-08-18 | - |
| Itsuka Mita Mermaid | 2000-10-21 | 6.60 (5) |
| Itsuka Mata, Koko de | 2008-04-05 | - |
| Itsuka Mata Kirameki no Naka de | 2021-09-21 | - |
| Itsuka Furu Yuki | 2004-02-27 | 6.60 (21) |