- O desenho mangá
- O Maidens In Your Savage Season Volume 3
- O Maidens In Your Savage Season Volume 4
- O Maidens in Your Savage Season Volume 5
- O Recruta Endi
- O-Parts Hunter, Vol. 12
- O-Parts Hunter, Vol. 9
- Obsessions of an Otome Gamer Volume 2
- Ocean/Orbiter Deluxe Edition
- ODA CINNAMON NOBUNAGA Volume 1
- ODA CINNAMON NOBUNAGA Volume 2
- ODA CINNAMON NOBUNAGA Volume 3
- ODA CINNAMON NOBUNAGA Volume 4
- Ode to Kirihito
- Of the Red, the Light, and the Ayakashi, Vol. 10
- Of the Red, the Light, and the Ayakashi, Vol. 6
- Of the Red, the Light, and the Ayakashi, Vol. 7
- Of the Red, the Light, and the Ayakashi, Vol. 8
- Of the Red, the Light, and the Ayakashi, Vol. 9
- Oh My Goddess vol. 4
- Oh My Goddess vol. 5
- Oh My Goddess vol. 6
- Oh My Goddess! Volume 1
- Oh My Goddess! Volume 10
- Oh My Goddess! Volume 11
- Oh My Goddess! Volume 12
- Oh My Goddess! Volume 13
- Oh My Goddess! Volume 14
- Oh My Goddess! Volume 15
- Oh My Goddess! Volume 16
- Oh My Goddess! Volume 17
- Oh My Goddess! Volume 18
- Oh My Goddess! Volume 19
- Oh My Goddess! Volume 2
- Oh My Goddess! Volume 20
- Oh My Goddess! Volume 21
- Oh My Goddess! Volume 22
- Oh My Goddess! Volume 23
- Oh My Goddess! Volume 24
- Oh My Goddess! Volume 25
- Oh My Goddess! Volume 26
- Oh My Goddess! Volume 27
- Oh My Goddess! Volume 28
- Oh My Goddess! Volume 29
- Oh My Goddess! Volume 3
- Oh My Goddess! Volume 30
- Oh My Goddess! Volume 31
- Oh My Goddess! Volume 32
- Oh My Goddess! Volume 33
- Oh My Goddess! Volume 34
- Oh My Goddess! Volume 35
- Oh My Goddess! Volume 36
- Oh My Goddess! Volume 37
- Oh My Goddess! Volume 38
- Oh My Goddess! Volume 39
- Oh My Goddess! Volume 40
- Oh My Goddess! Volume 41
- Oh My Goddess! Volume 42
- Oh My Goddess! Volume 43
- Oh My Goddess! Volume 44
- Oh My Goddess! Volume 45
- Oh My Goddess! Volume 46
- Oh My Goddess! Volume 47
- Oh My Goddess! Volume 48
- Oh My Goddess! Volume 7
- Oh My Goddess! Volume 8
- Oh My Goddess! Volume 9
- Oh, My Sweet Alien!
- Oishinbo: Fish, Sushi and Sashimi, Vol. 4
- Oishinbo: Izakaya--Pub Food, Vol. 7
- Oishinbo: Japanese Cuisine, Vol. 1
- Oishinbo: Ramen and Gyoza, Vol. 3
- Oishinbo: Japanese Cuisine, Vol. 1
- Oishinbo: Ramen and Gyoza, Vol. 3
- Oishinbo: Sake, Vol. 2
- Oishinbo: The Joy of Rice, Vol. 6
- Oishinbo: Vegetables, Vol. 5
- Ojojojo Vol. 1
- Ojojojo Vol. 2
- Ojojojo Vol. 3
- Ojojojo Vol. 4
- Oku-san’s Daily Fantasies
- OL VISUAL KEI Sampler
- OL VISUAL KEI Volume 1 Part 1
- OL VISUAL KEI Volume 1 Part 2
- OL VISUAL KEI Volume 2 Part 1
- OL VISUAL KEI Volume 2 Part 2
- OL VISUAL KEI Volume 3 Part 1
- OL VISUAL KEI Volume 3 Part 2
- Old Boy Volume 1
- Old Boy Volume 2
- Old Boy Volume 3
- Old Boy Volume 4
- Old Boy Volume 5
- Old Boy Volume 6
- Old Boy Volume 7
- Old Boy Volume 8
- OLD DAYS
- Old Flames and Brimstone
- Olympos
- Omamori Himari, Vol. 1
- Omamori Himari, Vol. 10
- Omamori Himari, Vol. 12
- Omamori Himari, Vol. 2
- Omamori Himari, Vol. 4
- Omamori Himari, Vol. 9
- One Fine Day, Vol. 1