| Kiss the Black Cat | Web Novel | japanese | 4.3 |
| Kiss the Scumbag | Web Novel | korean | 3.1 |
| Kisses Make Me Grow Taller | Web Novel | chinese | 3.7 |
| Kissing My Student, It’s Over if We’re Caught | Light Novel | japanese | 3.0 |
| Kissing the Mole | Web Novel | chinese | 4.0 |
| Kitchen Xiuzhen | Web Novel | chinese | 3.3 |
| Kitsch Attack | Web Novel | korean | 3.9 |
| Kitsch Wedding | Published Novel | korean | 3.6 |
| Kitten Star | Web Novel | chinese | 4.3 |
| Kizoku to Nessa no Ouji | Light Novel | japanese | 3.1 |
| Kneel Before The Villain | Web Novel | korean | 4.1 |
| Kneel to Me | Web Novel | chinese | 4.5 |
| Kneel, Your Grace! | Web Novel | korean | 3.3 |
| Knight Collector | Web Novel | korean | 3.8 |
| Knight Covered in Soot (WN) | Web Novel | japanese | 3.2 |
| Knight Fantastic Night | Published Novel | chinese | 3.5 |
| Knight of Demise | Web Novel | chinese | 4.0 |
| Knight of the Sea | Web Novel | chinese | 3.8 |
| Knight, the Dragon Snatched a Princess Again! | Web Novel | chinese | 4.2 |
| Knights & Magic | Web Novel | japanese | 4.3 |
| Knight’s Chivalry | Web Novel | japanese | 3.3 |
| Knocked Down Lovingly | Web Novel | korean | 3.6 |
| Know on the Third Morning | Web Novel | japanese | 4.1 |
| Knowing Brother | Web Novel | korean | 3.7 |
| Kochugunshikan Boukensha ni Naru | Web Novel | japanese | 3.7 |
| Kohinata Seiya Doesn’t Know the “Original Story.” I’m Just a Mob Character in a Rom-Com, and the Beautiful Girl Next Door Is the Main Heroine? So You’re Telling Me to Step Aside? Nah, I Have No Idea What You’re Talking About | Web Novel | japanese | 4.2 |
| Koi wa Futago de Warikirenai | Light Novel | japanese | 3.2 |
| Koi wa Yozora wo Watatte | Light Novel | japanese | 4.1 |
| Koibito Daikō no Baito o Hajimeta ore, Nazedarou… Fukusū no Bishōjo Kara Shimei Irai ga Haitte Kuru (LN) | Light Novel | japanese | 4.1 |
| Koibito Daikō no Baito o Hajimeta ore, Nazedarou… Fukusū no Bishōjo Kara Shimei Irai ga Haitte Kuru (WN) | Web Novel | japanese | 3.3 |
| Koibito, Hajimemashita | Web Novel | japanese | 3.3 |
| Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10 Nen ga Tattara Densetsu ni Natteita | Web Novel | japanese | 3.4 |
| Kokoro Connect | Light Novel | japanese | 4.2 |
| Kokugensou wo Item Cheat de Ikinuku (LN) | Light Novel | japanese | 3.6 |
| Kokuhaku Yokou Renshuu | Light Novel | japanese | 3.7 |
| Kolab Pailin | Published Novel | khmer | 3.8 |
| Konbini Goto Kara Tasuketa Jimi Tenin ga, Onaji Kurasu no Ubude Kawaii Gyarudatta | Light Novel | japanese | 3.4 |
| Konjiki no Moji Tsukai (LN) | Light Novel | japanese | 3.8 |
| Konjiki no Moji Tsukai (Reboot) | Web Novel | japanese | 3.7 |
| Konjiki no Moji Tsukai (WN) | Web Novel | japanese | 3.9 |
| Kono Ai ni Hizamazuke | Light Novel | japanese | 3.3 |
| Kono Kamen no Akuma ni Sodan wo! | Light Novel | japanese | 4.6 |
| Kono Monogatari O Kimi Ni Sasagu | Light Novel | japanese | 4.1 |
| Kono Sekai ga Game da to, Ore dake ga Shitte Iru (LN) | Light Novel | japanese | 4.3 |
| Kono Sekai ga Game da to, Ore dake ga Shitte Iru (WN) | Web Novel | japanese | 4.0 |
| Kono Subarashii Sekai ni Bakuen o! | Light Novel | japanese | 4.5 |
| Kono Subarashii Sekai ni Shukufuku o! | Light Novel | japanese | 4.5 |
| Kono Subarashii Sekai ni Shukufuku o! Yorimichi! | Light Novel | japanese | 4.5 |
| Kono Tsumibukaki Yoru Ni | Light Novel | japanese | 3.7 |
| Konoha Hypocrite | Web Novel | chinese | 4.0 |