- COBRA: Blue Rose
- COBRA: Galaxy Nights
- COBRA: God's Eyes
- COBRA: Golden Gate
- COBRA: Legend of Mandrad
- COBRA: Magic Doll Vol.1
- COBRA: Magic Doll Vol.2
- COBRA: On The Battlefield
- COBRA: Rugball
- COBRA: Secret of Sword
- COBRA: The Black Dragon King
- COBRA: The Psychogun Vol.1
- COBRA: The Psychogun Vol.2
- COBRA: Thunderbolt Star
- COBRA: Time Drive
- Colonel Ancroft's Love 1 (Harlequin Comics)
- Colonel Ancroft's Love 2 (Harlequin Comics)
- Colorful Dreams
- Colorful Dreams Volume 1
- COMA GOMA ゴマちゃん : 1
- COMA GOMA ゴマちゃん : 2
- COMA GOMA ゴマちゃん : 3
- COMA GOMA ゴマちゃん : 4
- COMA GOMA ゴマちゃん : 6
- Combatants Will Be Dispatched!, Vol. 1 (manga)
- Combatants Will Be Dispatched!, Vol. 2 (manga)
- Combatants Will Be Dispatched!, Vol. 3 (manga)
- Combatants Will Be Dispatched!, Vol. 4 (manga)
- Combatants Will Be Dispatched!, Vol. 5 (manga)