| Isekai no Reijou ni TS Tensei Shiteita Ken ~Boku ga Haraguro Ouji ni Rouraku Sareru made~ | 2022-02-10 | 6.10 (25) |
| Isekai no Oukoku Marugoto Ore no Haramase Onaho Harem! | 2022-05-27 | 6.60 (89) |
| Isekai de Ore wa Ero Keiei no Top ni Naru! | 2020-03-27 | 6.70 (15) |
| Isekai Zettai Yakusai Girl | 2023-11-04 | - |
| Isekai Yaribeya | 2019-11-20 | - |
| Isekai World VN | - | - (1) |
| Isekai Tenshou | - | - |
| Isekai Tensei Nantara Nante Shiru Wake nai Gay no Ossan ga Shoukan Sarete Bouken suru Chotto Ecchi na Banashi | 2026-01-29 | - |
| Isekai Slave | 2023-06-10 | 5.70 (21) |
| Isekai Sex Kingdom 👑 | - | - (1) |
| Isekai Senshu wa Kaerenai | 2023-06-09 | - (1) |
| Isekai Sakaba no Sextet ~Vol.3 Postlude Days~ | 2021-03-18 | 6.70 (341) |
| Isekai Sakaba no Sextet ~Vol.2 Adventurer's Days~ | 2021-01-14 | 6.60 (408) |
| Isekai Sakaba no Sextet ~Vol.1 New World Days~ | 2020-11-05 | 6.50 (602) |
| Isekai Paradise | 2026-04-24 | 6.30 (12) |
| Isekai Musume to Himitsu no ConCafe Ecchi | 2024-08-30 | - (3) |
| Isekai Musume Hatsujouchuu ~Ore no Are o Hamu Hamu Shimakuri!?~ | 2019-09-27 | 6.70 (24) |
| Isekai Monmusu Sensation - Monmusu Sensei to Manabu H na Renai Gaku | 2023-05-26 | 7.20 (46) |
| Isekai Mom Stories | - | - (2) |
| Isekai Lovers! ~Kyonyuu no Yuusha-tachi wa Choro-in~ | 2014-09-26 | 6.80 (24) |
| Isekai Itte Massage de Ikinokorou to Shitara Bikyaku Bijo to Icha x2 Life ~Ten'i Bonus ga Oishii Sugita Ken~ | 2023-03-31 | 6.40 (7) |
| Isekai Ikemen ni Chi o Nomareru Dake no Game | 2018-06-03 | - (1) |
| Isekai Idou Yuukai Yado Kitan Sandou no Torinozu Tei: Sacrifice 1 ~Onna Ninja Hizakura~ | 2017-08-26 | - |
| Isekai Heroine to Dousei Seikatsu!? | 2025-03-28 | - (4) |
| Isekai Hentai Seikatsu! ~Tensei Shita Ore wa Shokushu ya Mamono ya Onna no Ko no Pantsu ni... Naru!?~ | 2020-08-28 | 6.40 (14) |
| Isekai Heat Massage ~Ken to Mahou no Sekai o H na Shiatsu Skill de Musou Seiatsu!!~ | 2022-07-29 | 7.10 (67) |
| Isekai Healing Life | - | - |
| Isekai Harem Quest ~Saikyou no Chikara to Koi no Bouken~ | 2025-05-16 | - |
| Isekai Haramase Harem Party~ Saijaku no Kaiseki Skill ga Ijou Hattatsu Shite Ecchi na Jakuten o Maruhadaka ni! Saikyou no Bakunyuu Boukensha-tachi o Nikubenki-ka!~ | 2020-09-25 | 5.90 (160) |
| Isekai Fuuzoku, Hajimemashita!? ~Tensei Shitara Harem Seikatsu ga Mattemashita~ | 2017-10-27 | 6.50 (61) |
| Isekai Erect | 2022-10-07 | 6.30 (5) |
| Isekai Enkou - After | 2024-12-20 | 7.00 (18) |
| Isekai Enkou | 2024-07-26 | 6.80 (28) |
| Iseijin Kara no Okurimono | 2014-07-24 | - (3) |
| Isehos - Host Desu ga Isekai de Junjou Shinkan o Kaihatsu Shimasu | 2024-04-26 | - |
| Isegye Misonyeo Gongnyakbeop! | 2026 | - |
| Iseda ati awon Irun (Nature of the Crown) | - | - |
| Ise-Shima Mystery Annai Itsuwari no Kuroshinju | 2019-01-24 | 5.70 (6) |
| Ise Pai! | 2017-09-23 | - (2) |
| Ise & Kai: Chosen Throne | TBA | - (1) |
| Ischeznuvshaja | 2025-07-05 | - (1) |
| Ischezaja | 2018-12-27 | 5.80 (48) |
| Isan -Aizou no Ketsumatsu- | 2011 | - |
| Isamashii Chibi no Iinazuke | 2007-05-25 | - (4) |
| Isaku | 1995-08-25 | 7.20 (108) |
| Isagi de Tiaojiu Riji | 2026-01-26 | - |
| Isabella: Chasing Shadows | 2024-06-21 | - (2) |
| Is it normal to be down bad for my friend? | 2024-08-13 | - (3) |
| Is it Wrong to Want to be Locked up, Toyed with and Tortured By a Hot Guy?! | 2022-08-30 | 6.40 (30) |
| Is it OK to pick up Anomalies at a University? | 2022-02-06 | - |