| Immoral Byoutou | 2013-11-01 | 6.20 (39) |
| Immoral Emotion | 2002-06-28 | 6.60 (10) |
| Immoral Empire | 2008-09-26 | - (2) |
| Immoral Joubo Hazard | 2011-10-14 | 6.10 (34) |
| Immoral Little | 2012-06-29 | 6.70 (105) |
| Immoral Little DS | 2013-04-30 | 6.60 (58) |
| Immoral Lovers ~Yome ya Gifu ni wa Ienai Katei no Jouji~ | 2013-11-29 | 5.90 (48) |
| Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~ | 2021-04-28 | 6.60 (117) |
| Immoral Report ~Joseito kara no Ecchi na Kokuhaku~ | 2009-01-31 | - (4) |
| Immoral Sister Reo | 2002-06-21 | 6.90 (8) |
| Immoral Sneaking -Wana ni Hamatta Otome-tachi- | 2012-01-15 | - (2) |
| Immoral Stories: Rebecca | 2025-07-17 | 5.70 (5) |
| Immoral Study Scenario 1: Shirakawa Reiko | 1995-08-11 | 5.20 (389) |
| Immoral Study Scenario 2: Iijima Yuka | 1995-09-22 | 5.20 (323) |
| Immoral Study Scenario 3: Asakura Manami | 1995-10-20 | 4.90 (127) |
| Immoral Succubus | 2011-04-28 | - (4) |
| Immoral Tenshi Batsu | 2003 | - |
| Immoral Visit -Roshutsu Kairaku ni Mezamete Iku Shoujo- | 2011-10-04 | - |
| Immoral Visit 3 -Damasareta Watashi ga Shuuchi Roshutsu o Yamerarenai Riyuu- | 2012-07-06 | - |
| Immoral visit 2 -S na Kanojo ga Roshutsu Kairaku ni Ochiru Made- | 2011-12-30 | - |
| Immortal Brave | 2024-03-02 | - (1) |
| Immortal Desires | 2022-08-31 | - |
| Immortal Desires: Paths Not Taken | 2025-01-17 | - |
| Immortal Heart | 2019-08-10 | 5.80 (11) |
| Immortal Heart Society | 2021-05-16 | - (2) |
| Immortal Snake Nest | - | 6.60 (6) |
| Immortal's Pet | 2025-07-09 | - (1) |
| Imo-bilizer! | 2012-08-31 | 6.20 (84) |
| ImoTsuyo: Si es por mi hermana menor, seré más fuerte. | 2026-06-07 | - (4) |
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| Imochichi Scandal ~Medete yo, Onii-chan~ | 2014-07-25 | 6.20 (33) |
| Imohara ~Loli na Imouto wa Matanity~ | 2010-12-28 | 5.80 (19) |
| Imohori ~Onii-chan no Funtouki!~ | 2004-03-26 | - (3) |
| Imojiri | 2014-12-26 | 6.10 (23) |
| Imojoku | 2012-07-06 | 6.10 (50) |
| Imokoi Diary~ | 2004-12-13 | - (2) |
| Imokoi Diary~ 2 | 2005-08-14 | - (1) |
| Imolicious | 2018-11-23 | 3.80 (149) |
| Imomitsu ~Geki LOVE Imouto wa Futanari Yousei~ | 2014-10-17 | 5.50 (29) |
| Imooka | 2022-06-24 | 6.70 (87) |
| Imosapo! ~Genkin de Low na Kyonyuu Imouto ni, Oppai Momasete Moraimashita~ | 2020-08-28 | 6.90 (52) |
| Imoseku Again Imouto Ana Dake ja Tarinai | 2023-11-30 | - (1) |
| Imouto | 2008-11-14 | - |
| Imouto "Onee-chan Kuso Bitch Nande Watashi ni Shimasen ka" | 2013-12-31 | 6.00 (28) |
| Imouto (Ane) wa Ani (Otouto) no Seiheki o Yugamasetai! | 2025-03-28 | 7.00 (33) |
| Imouto (ni) Koukan (Sareru Ani) no Kai | 2010-08-20 | 5.70 (14) |
| Imouto 4nin to Nakadashi Seikatsu! ~Jare Tsuki Amae ni Osewa♪ Imouto-tachi to Ichaicha ga Tomaranai! Onii-chan no Seishi wa Zetsumetsu Hisshi!?~ | 2012-10-12 | 5.90 (30) |
| Imouto Anal ~Koi Suru H na Pink no Tsubomi~ | 2017-01-27 | 7.00 (70) |
| Imouto Bloomers ~Houkago no Kuikomi Lesson~ | 2002-08-02 | - (3) |
| Imouto Choukyou Nikki ~Konna Tsundere ga Ore no Imouto na Wakenai!~ | 2011-09-03 | 5.40 (240) |