| Title | Format | Country | Volumes | State |
|---|---|---|---|---|
| Kami nomi zo shiru sekai神のみぞ知るセカイ | Manga | Japan | 26 | Completed |
| Karneval | Manga | France | 22 | Ongoing |
| Kasane累 -かさね- | Manga | Japan | 14 | Completed |
| Kasane - La voleuse de visage | Manga | France | 13 | Ongoing |
| Kazan | Manga | France | 7 | Completed |
| Kill la Kill | Manga | France | 3 | Completed |
| KILL la KILLキルラキル | Manga | Japan | 3 | Completed |
| Kimi no Na wa. ~your name.~君の名は。～your name.～ | Manga | Japan | 3 | Completed |
| Kimi no Na wa.君の名は。 | Novel | Japan | 1 | Completed |
| King's Game | Light novel | France | 1 | Ongoing |
| Kitsune to Atori ~Takeda Hinata Tanpenshū~狐とアトリ―武田日向短編集― | Manga | Japan | 1 | Completed |
| Kyōki no Sanmyaku nite ~Lovecraft Kessaku-shū~狂気の山脈にて～ラヴクラフト傑作集～ | Manga | Japan | 4 | Completed |