| Konoha’s 50 Years | Web Novel | chinese | 2.9 |
| Konosuba × Rokudenashi Special Collaboration Book | Light Novel | japanese | 3.9 |
| Konyaki-haki sarete Me ga Samemashita | Web Novel | japanese | 4.5 |
| Konyaku Haki Suru Kawari ni,-ka to wa en o Kira Sete Itadakimasu | Web Novel | japanese | 3.9 |
| Konyaku Haki ni Zettai Kioku de Tachimukau | Web Novel | japanese | 4.3 |
| Konyaku Haki o Iiwatasa Remashitaga Watashi wa Anata no Fiansede wa Arimasen | Web Novel | japanese | 4.0 |
| Konyaku Haki? Yoroshī. Naraba, Fukushūda | Web Novel | japanese | 3.3 |
| Kon’yaku Haki Sareta no wa Ojou-sama deshita!? | Web Novel | japanese | 3.4 |
| Kore wa Zombie desu ka? | Light Novel | japanese | 4.3 |
| Korean Mercenary’s Wild West | Web Novel | korean | 4.4 |
| Koroshiya-san to Hajimeru Icha Love Shinkon Seikatsu | Light Novel | japanese | 2.9 |
| Kou 1 Desu ga Isekai de Joushu Hajimemashita | Light Novel | japanese | 3.8 |
| Koukando ga Mieru you ni natta n da ga, Heroine ga Count Stop shite iru Ken | Web Novel | japanese | 3.2 |
| Koukyuu no Karasu | Light Novel | japanese | 3.6 |
| Kouri Mahou no Ice Creamya-san wa, Atsugari Shinkan-sama no Gohiiki desu | Web Novel | japanese | 3.9 |
| Koushirou Kujou the Detective Butler | Light Novel | japanese | 3.7 |
| Kuishinbo Elf | Web Novel | japanese | 3.8 |
| Kujibiki Tokushou: Musou Harem-ken (LN) | Light Novel | japanese | 3.5 |
| Kujibiki Tokushou: Musou Hāremu ken (WN) | Web Novel | japanese | 3.6 |
| Kujonin | Web Novel | japanese | 3.9 |
| Kuma Kuma Kuma Bear | Web Novel | japanese | 4.4 |
| Kumo Desu ga, Nani ka? | Web Novel | japanese | 4.4 |
| Kurasu no Daikiraina Joshi to Kekkon Suru Koto ni Natta | Light Novel | japanese | 3.9 |
| Kuro no Hiera Glaphicos | Light Novel | japanese | 3.5 |
| Kuro no Maou | Web Novel | japanese | 3.6 |
| Kuro no Senki (LN) | Light Novel | japanese | 3.6 |
| Kuro no Senki (WN) | Web Novel | japanese | 3.7 |
| Kuroki Eiyuu no Ichigeki Musou | Light Novel | japanese | 3.1 |
| Kurumi Tokisaki’s Planar Journey | Web Novel | chinese | 3.2 |
| Kusoge Online (BETA) | Light Novel | japanese | 4.0 |
| Kusuriya no Hitorigoto | Web Novel | japanese | 4.6 |
| Kutabire Salarymen no Ore, 7nenburi ni Saikai shita Bishoujo JK to Dosei wo Hajimaru | Light Novel | japanese | 3.1 |
| Kuusen Madoushi Kouhosei no Kyoukan | Light Novel | japanese | 3.3 |
| Kuzu Inou【Ondo wo Kaeru Mono】 no Ore ga Musou suru made | Web Novel | japanese | 3.2 |
| Kuzu to Kinka no Qualidea | Light Novel | japanese | 4.5 |
| Kyokou Suiri | Light Novel | japanese | 4.0 |
| Kyou Kara Ore wa Loli no Himo! | Light Novel | japanese | 3.7 |
| Kyou kara Ma no Tsuku Jiyuugyou! | Light Novel | japanese | 3.8 |
| Kyoukai Senjou no Horizon | Light Novel | japanese | 4.0 |
| Kyoukai Senjou no Horizon – Kimitoasamade | Light Novel | japanese | 3.5 |
| Kyra Yueseff | Web Novel | filipino | 3.3 |
| Kyuuketsu Hime wa Barairo no Yume o Miru | Web Novel | japanese | 3.7 |
| Kōshaku Reijō Ni Semara Rete Komaru Kishi Wa, Toriaezu Nigeru | Web Novel | japanese | 3.6 |