OA	Oasis Keikaku!	Oazuke Shitsuji (SUGI Shippo)
Obaa-chan no Poi	Obake Life	Oblation Love
Obocchama no Otanoshimi	Oboreru Hitomi	Oboreru Kemono no Koibito
Oboreru Sakana	Oboretai	Obrigado!
Occult Academy	Ocean	Ochiru Seija no Seppun
Ochite Chika Chika	Ode to Kirihito	Odeko no Mahou
Odoru! Kremlin Kyuuden	Oeufs D'ange	Off Time
Offered	Off-time no Kemono	Ogeha
Oh! My Maid	Oh! My Sweet Baby!!!	Ohana Moyou no One-Piece
Ohana to Chocolate	Ohikkoshi	Ohime-sama ja Irarenai
Ohimesama no Yurikago	Ohisama Egao	Ohisama no Hana
Oikakete mo Chikazuite mo	Oikakete mo Chikazukuite mo	Oikaketemo Chikazuitemo
Oinari-sama no Yome	Oira Houkago Wakadaishou	Oiran Chirashi
Oiran Girl	Oishii Ayakashi x Uchi no Maou Kamimasen yo	Oishii Kimi List
Oishii Study	Ojiichan Wa Shounen	Ojiichan wa Shounen Tantei
Ojiizoo Quest	Ojousama no Gohoubi	Ojousama no Inu
Ojousama no Untenshu	Ojou-sama to Maid-san ga Yuri Yuri suru Manga	Ojousama to Youkai Shitsuji
Ojousama's Orders	Ok Girl	Oka no Ue no Rakuen
Okaeri wa Kochira	Oki ni Mesu Mama	Okimono Kimono
Okitsune no Hanayome	Okitsune-sama de Chu	Okobore Hime to Entaku no Kishi
Okosama Brat	Oko-sama Star	Okubyou na Koi
Okubyoumono ni I Love You	Okujou de Kimi to Yume Miru	Okujou no Bai-Bai
Okujou no Yurirei-san dj - Hello Melancholic	Okujouhime	Okuman Chouja no Kakehiki
Okutsuki Mura no Yukai Sou	Old Boy	Olimpos
Omae de Nakya Dame Mitai	Omae Ga Sekai o Kowashitai Nara	Omae Sae Inakerya
Omaera Minna Damasareteiru!	Omairi desu yo	Omamori Himari
Omamori no kamisama	Omamorishimasu, Dokomademo	Ometura
Omukae desu	On the Quiet	Onaidoshi no Onee-chan
Onaji Sora wo Miteiru	Onani Master Kurosawa	Once Again
One	One Day	One Day, Suddenly, Like Love
One Missed Call	One Outs	One Piece dj - Lotus Maker
One Piece dj - Tears Will Surely Turn into Strength	One Piece dj - Three Days of Extreme Extravagance	One Piece dj - Una Música Dolce Tocaba
One Piece Wanted!	One Piece x Toriko	One Punch-Man dj - GS AV
One Punch-Man dj - Hontou wa Chome-chome na Sensei	One Punch-Man dj - Kanata no Anata e	One Punch-Man dj - Zenbu tanin no sei da...!!
One Winter	One-Day Idol	Onee-chan Does Wrong Things
Onee-chan Dorobou	Oneechan ga Mamotte Ageru!	Onee-chan no Imouto
Oneesan no Jijou	Onegai Sensei	Onegai Shinpu-sama
Onegai Teacher	Onegai Teacher!	Onegai Twins
Onegai Twins!	Onepunch-Man dj - Toki o Kakeru Hage	Onepunch-Man dj - Uchi no Ko no Shashin Utsuri ga Warui Rashii
Oneshot (OGURA Muku)	Ongaku no Jikan	Oni ga Warau
Oni ni Hatsujou	Oni ni Itaru Doro	Oni Yashiki
Onidere	Onigami	Onigari no Mori de
Onihime VS	Onii-chan Complex	Oniichan Lab
Oniisama E	Oniisamakata, Goranshin!	Oniisan to Yobinasai
Onikiri Jyuzo	Onikirisama no Hakoirimusume	Oniyuri-san and Himeyuri-san
Onkochisin na Kanojo	Only the Ring Finger Knows	Only You (FUJIOMI Karen)
Only You, Only	Only Your Hero!!	Onmyou Taisenki
Onmyouji ni Naru Houhou	Onna Kyoushi	Onna no Ko Keikaku
Onna no Ko Kenkyuukai	Onnanoko ga Shinu Hanashi	Onnanoko Play
Onnanoko Tokidoki Otokonoko	Onnanoko wa Koi o Suru to Mousou Shichaun Desu	Onnanokotte Honto ni Mou
Onsen de Aimashou	Onsen Wakusei	On-site ☆ Report
Onward! Maiden Road	Oo Seyo!! Sengoku Gakuen Seitokai	Ookami ga Kuru!
Ookami kui	Ookami Lover	Ookami Nanka Kowakunai!
Ookami Nante Kowakunai	Ookami Nante Kowakunai!!	Ookami Ningen to Ningen Ookami
Ookami no Ketsuzoku	Ookami Papa wa Hitsuji Tsura shite Yatte kuru	Ookami Shoujo Laura
Ookami Shounen	Ookami Shounen to Hamu no Hito	Ookami to Hitsuji
Ookamidomo no Shitsukekata	Ookamitachi no Gohoubi	Ookamitachi no Tengoku
Ooma ga Toki!	Oops	Ootari Gakuen Shikkoubu
Ootomachikku Enjeru	Oouso Swing	Open Sesame
Open Sesame (Mutou Hiromu)	OPM x MP100 x Arakawa Under the Bridge x Saint Oniisan x Black Knight Parade	Orange Bubble Gum
Orange Kiss	Orange Marmalade	Orange Planet
Orange Sweet Olive Blossoms	Orange Yane no Chiisana Ie	Orange Yellow
Order wa Boku de Yoroshi desu ka	Order wa Boku de Yoroshii desu ka	Ordinary
Ordinary±	Ore ga Akuma de, Aitsu ga Yome de	Ore ga Doutei o Sutetara Shinu Ken ni Tsuite
Ore ga Neko wo Kaburu no wo Yameta Riyu	Ore ga xx de Model Debut!	Ore ni Honey Trap
Ore no Hanashi o Shiyouka	Ore no Hanashi wo Shiyouka	Ore no Imouto ga Konna ni Kawaii Wake ga Nai dj - Chibineko
Ore no Imouto ga Konna ni Kawaii Wake ga Nai dj - Ore ga Imouto de Imouto ga Ore de	Ore no Imouto Official Anthology Comic	Ore no Kanojo to Osananajimi ga Shuraba Sugiru
Ore no Kanojo to Osananajimi ga Shuraba Sugiru + H	Ore no Kanojo to Osananajimi ga Shuraba Sugiru Ai	Ore no Kimochi ga Wakaru ka
Ore no Mono ni Narinasai	Ore no Mune de Sake	Ore no Subete ga Kimi no Mono
Ore no Ushiro ni Tatsu na!!	Ore no Yome wa Aitsu no Tsuma	Ore o Koeru
Ore Ride!!	Ore to Akuma no Blues	Ore to Fuuki Iin no
Ore to Joushi no Kakushikoto	Ore to Omae no Stalker Boushihou	Ore wa Senpai no Nan Nan Desu ka!
Orefeti	Orenji Kakumei	Oresama na Pet
Oresama no Toriko	Oresama Ouji	Ore-sama Ouji
Oresama wa Koi no Dorei	Oretachi ni Ai wa Nai	Ore-tachi no Kijou Jitai!!
Oretama	Organ	Organ(Ryuusui Takafumi)
Origami	Orochi	Orokamono no Koi
Orphen	Orthoros	Orz
Osaerarenai	Osakana wa Ame no Naka	Osananajimi ga Do M de Tsundere Nan Desu ga
Osananajimi no Hatsukoi Kyoushitsu	Osanpo no Jikan	Oshaberi na Jikanwari
Oshiete, Kurogane-kun	Oshiete, Natsu	Oshiete, Ookami-san
Oshiire kara Ai o Komete	Oshioki da yo, Shiba-kun	Oshioki Shaman Musume
Osoba de Misasete!	Osoku Saku Hana	Osomatsu-san dj - Aoi Futari
Osomatsu-san dj - Chicken	Osomatsu-san dj - Gomenne, Kaa-san	Osomatsu-san dj - Hai kara Okasu
Osomatsu-san dj - Ichikara Jihen	Osomatsu-san dj - Kiss to Shousou	Osomatsu-san dj - Namae wo Yonde, Yobanaide
Osomatsu-san dj - Shijou Saidai no Jihen	Osomatsu-san dj - Uchi no Jinan wa Doutei Hi Shoujo	Osomatsu-san dj - Waraenai Hanashi
Ossan to Shoujo Matome	Osusume Boyfriend	Osuteki Darling
Otaku no Musume-san	Otenki Oniisan	Othello
Othello (HASUMI Toui)	Othello (Shoujo)	Oto Koi
Otodokeshimasu	Otogi Matsuri	Otogi Moyou Ayanishiki
Otogi no Machi no Rena	Otogi Zoshi	Otogibanashi de Himitsu no Kiss
Otogibanashi no Fude	Otogibanashi Wo Anata Ni Tsukiyo No Maihime	Otoko Hime to Mahou no Lamp
Otoko Irochaya	Otoko no ko ni Kusari	Otoko no Ko ni Toriko
Otoko no Musume Days	Otokomae! Beads Club	Otokonoko no Koto
Otokonoko no Koto wa Nani mo Shiranai	Otokonoko wa Hachimitsu	Otokonoko Wa Maid Fuku Ga Osuki
Otokonoko wa Maid Fuku ga Osuki!	Otokonoko Zukan	Otome Cake
Otome ni Nante Naremasen	Otome no Honki	Otome no Iroha!
Otome no Sainou	Otome wa Boku ni Koishiteru	Otome wa Inoru - Himitsu no Dormitory
Otome x Ranbu	Otome, Sakazu ni Chiru na Kare	Otomegokoro
Otomegokoro No Jiyuugata	Otomen	Otomentaru
Otona Keikenchi	Otona Keikenchi dj - Boku ni dake Ijiwaru	Otona Ni Nuts
Otona no Manaa	Otona No Mondai	Otona no Tame no Piano Lesson
Otona no Yoru no Otogibanashi	Otona Pink	Otona to Kodomo no Merry Christmas
Otonaninattara-bijinninarukochan	Otonari no Nikushokujuu	Otonari no Senpai
Otoshiana ni Hamerarete	Otouto ni Koi Shitara	Otouto wa, Ookami
Otouto wo Kareshi ni Suru Houhou	Otter no.11	Ou Dorobou Jing
Ou Dorobou Jing - Twilight Tales	Oubou Ookami to Akazukin	Ouchi e Kaerou
Ouchi he Kaerou	Ougon Honey	Ouji Hiroimashita
Ouji na Geboku no Aishikata	Ouji no Hakobune	Ouji no Kikan
Ouji Romantica	Ouji to Houkago	Ouji to Joujin
Ouji to Ken	Oujisama Game	Ouji-sama Game (KIRISHIMA Rira)
Ouji-sama mo Kabocha no Basha mo	Ouji-Sama ni Midara ni Midareru	Ouji-sama ni Nemuri Hime no Kisu wo
Oujisama no Kanojo	Oujisama no Obenkyou	Oujisama no Ren'ai Jijyou
Ouji-sama Sama no Jijou	Oujitachi wa Izonsuru	Oujo Alexandra
Oujosama to Bodyguard	Our Love Manual	Our Nishizaki Cavalry Corps
Our Time of Dawn	Ouran High School Host Club	Ousama Game
Ousama Game (Renda Hitori)	Ousama Game (shoujo)	Ou-sama no Shichiya
Ousama no Ura Shigoto	Ousama to Fushigi no Shiro	Out (HIDAKA Shoko)
Out of the Blue!	Outlanders	Ovally Trap
Over Image	Over the Blue	Overdose
Overly Sentimental	Ovum	Owarinaki Gogo
Owaru Heart Janee	Owatte miru no mo Warukunai	Oyaji
Oyaji Hiroimashita	Oyaji! Arisawa-san'chi no Hanashi	Oyaju Rider
Oyasumi Punpun	Oyasuminasai no Ato wa	Oyayubi Hime
Oyayubihime Infinity