| Soushunfu | 2003-08-17 | 6.50 (10) |
| Soushoku Kei na Ore to Bijin Sugiru Konkatsu Aite to Jitaku Keibiin na Otouto | 2011-03-12 | 5.10 (5) |
| Soushitsukyou | 2003-03-07 | 6.20 (28) |
| Soushitsu no Shounenshoujo Dainibu : Shi | 2014-12-30 | - |
| Soushitsu no Shounenshoujo Daiichibu : Satsui | 2013-09-25 | - |
| Soushitsu no Hibi ~Suimin'yaku Hen~ | 2012-12-23 | - |
| Soushitsu no Hibi ~Boukoku no Shounen Hen 2~ | 2013-11-26 | 7.30 (6) |
| Soushisouai Lolita no Seikatsu | 2016-08-04 | 6.90 (94) |
| Soushisouai Lolita | 2014-12-30 | 7.20 (151) |
| Soushinjutsu ∞ | 2012-11-30 | 7.50 (45) |
| Soushinjutsu ~P.S.＠4~ | 2004-10-22 | 6.50 (27) |
| Soushinjutsu Rei | 2011-01-28 | 7.20 (52) |
| Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~ | 2015-06-26 | 7.20 (40) |
| Soushinjutsu 3 | 2008-12-12 | 7.20 (63) |
| Soushinjutsu 2 | 2006-06-30 | 7.30 (27) |
| Soushin no Ars Magna | 2020-03-27 | 6.30 (113) |
| Soushin Shijutsu Report | 2022-05-29 | - |
| Soushi Soumai ~Oya no Inu Aida ni...~ | 2010-06-13 | - (3) |
| Soushi Soumai ~Onii-chan, Docchi?~ | 2008-09-08 | - |
| Souseiou Eru | 2006-10-21 | - |
| Souseiki 1: 31 | 2005 | - |
| Souseiji | 2007-12-25 | - (3) |
| Sousei no Himegimi ~Futanari Shimai to Maou no Kyuuai~ | 2014-04-25 | 5.90 (8) |
| Sousei Tenshi Cross Emotion Gaiden 6 | 2018-07-27 | - (1) |
| Sousei Tenshi Cross Emotion Gaiden 5 | 2018-03-30 | - (1) |
| Sousei Tenshi Cross Emotion Gaiden 4 | 2018-01-26 | - (2) |
| Sousei Tenshi Cross Emotion Gaiden 3: Sousei Tenshi VS Shokusou Tenshi Hen | 2017-06-30 | - (2) |
| Sousei Tenshi Cross Emotion Gaiden 2: Mou Hitori no Cross Desire Hen | 2017-03-31 | 6.20 (5) |
| Sousei Tenshi Cross Emotion | 2016-03-25 | 6.50 (13) |
| Sousei Taimaden ~Nyonin Shimai Ingi Shuutoku no Shiren to Wana~ | 2009-04-25 | - (2) |
| Sousei Seiki Devadasy | 2000-04-28 | - (1) |
| Sousei Kitan Aerial | 2012-07-27 | 7.40 (89) |
| Sousaku Sekai Kasetsu | 2024-04-14 | - |
| Sousaku Katsudou no Kami-sama | 2017-06-03 | - |
| Sousaku Kanojo no Ren'ai Koushiki | 2021-11-26 | 7.60 (667) |
| Sourou Oi to Fukanshou Oba-san - Nikutai Koukan Monogatari | 2025-04-29 | 5.90 (14) |
| Sour Prince | 2010-08-09 | 5.20 (10) |
| Sour Muffin's Sweet First Day of School | 2025-11-07 | - |
| Sour Muffin and The Pumpkin Princess | 2025-11-01 | - |
| Sour Cherry Twist | - | - |
| Sounyuu☆Chi*po no Toriko!! | 2014-12-10 | - |
| Sounds of the Night | 2018-06-19 | 6.10 (6) |
| Sounds of Talent: Kpop Adventure | - | - |
| Sounds of Her Love ~We'll Always Be Together~ | 2018-03-09 | 6.30 (73) |
| Sounds of Her Love 2 | 2025-06-20 | 6.00 (8) |
| Sounds of Her Love | 2017-03-09 | 6.30 (199) |
| Soundproof | 2016-11-16 | - (1) |
| Sound Novel wa Totsuzen ni ~Denwa Hen~ | 2004-07-21 | - |
| Sound Novel Tsukuru 2 | 1997-09-25 | - |
| Sound Novel Gekijou: Natsu no Ki ni Sumu Nymph | 1996-05-31 | - (1) |