| Kaeluc Valentine’s 2022 | 2022-02-24 | - |
| Kaeluc: Fragments of the Past | 2022-05-26 | - |
| Kaen Seibo ~The Virgin on Megiddo~ | 2001-08-02 | - (3) |
| Kaerazu no Mori | 2002-12-26 | - |
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| Kaerimichi | 2021-07-18 | 6.10 (5) |
| Kaerimichi | 2021-07-29 | 6.30 (76) |
| Kaerimichi wa Kiken ga Ippai | 1990-05-16 | - (2) |
| Kaeru Batake DE Tsukamaete: Natsu Chigira Sansen! | 2010-12-28 | - (4) |
| Kaeru Batake DE Tsukamaete☆ | 2010-04-28 | 7.20 (18) |
| Kaeru nyo Panyon | 1997-08-29 | 5.60 (92) |
| Kaeru to Kenki | 2011-08-12 | - |
| Kaette Kita Seigi no Heroine Kari ~ai06-9 Hen~ | 2022-05-08 | - (1) |
| Kafka is missing | 2025-05-16 | - (1) |
| Kafu ~Kono Shirabe ga Kimi ni Todokimasu You ni~ | 2001-03-23 | 6.40 (7) |
| Kafuku Kanjusu Utsukushiki Utsuro ka na | 2010-10-07 | - (2) |
| Kagachi-sama Onagusame Tatematsurimasu Kai ~Netorare Mura In'yabanashi~ | 2024-03-08 | 7.10 (85) |
| Kagachi-sama Onagusame Tatematsurimasu ~Netorare Mura In'ya-banashi~ | 2012-08-10 | 7.20 (189) |
| Kagai Jugyou | 2005-01-01 | - (1) |
| Kagai Jugyou -Shiritsu Hakurei Joshi Gakuen- | 2017-04-28 | 7.20 (92) |
| Kagaku to Mahou no Kasou Sekai Vol. 1 | 2013-07-04 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 10 | 2015-01-18 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 11 | 2015-02-18 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 12 | 2015-03-21 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 13 | 2015-04-28 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 2 | 2014-04-05 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 3 | 2014-06-05 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 4 | 2014-07-06 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 5 | 2014-08-04 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 6 | 2014-09-01 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 7 | 2014-10-01 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 8 | 2014-11-01 | - |
| Kagaku to Mahou no Kasou Sekai Vol. 9 | 2014-12-12 | - |
| Kagakubu Buchou (* Kusuri de Youjika Shita) Yagami Sae ~Otona ni Naru Tame no Jikken Report~ | 2011-12-23 | - |
| Kagami | 2002-12-30 | 6.20 (5) |
| Kagami no Hate no Rougoku | 2022-08-05 | - (2) |
| Kagami no Ikusame Valmaiden | 2019-12-30 | 6.20 (5) |
| Kagami no Kuni no Himegimi | 2016-02-12 | - |
| Kagami no Kuni no Ohime-sama ga Gakuen Seikatsu to Koi o Hajimemashita | 2014-06-27 | 6.50 (17) |
| Kagami no Majoritia | 2024-06-14 | - (1) |
| Kagami no Naka no Orgel - Hitotsume no Monogatari [Thumbelina] | 2003-06-27 | - (2) |
| Kagami no Naka no Orgel - Mittsume no Monogatari [Haensel und Gretel] | 2003-09-12 | - (2) |
| Kagami no Naka no Princess -Love Palace- | 2015-05-28 | 6.80 (6) |
| Kagamihara/Justice -Kodomo to ** to ** no Hanashi- | 2011-12-31 | - (3) |
| Kagamihara/Justice -Kodomo to Otona to ** no Hanashi- | 2013-08-12 | - (2) |
| Kagamihara/Justice -Kodomo to Otona to Sensou no Hanashi- | 2016-12-29 | - (2) |
| Kagaribi | 2026-03-26 | - |
| Kagayaku Mirai ni Owakare o | 2022-09-26 | - |
| Kage no Usui Dubia | 2019-03-12 | - |
| Kage to Kage | 2024-09-08 | - (3) |