Slice of Life

Ojousama's Forbidden Culinary Detours

Ojousama wa Maid Harem wo Torimodoshitai

OK

Okashiratsuki

Okitara Onnanoko no Karada ni Natteta Hanashi

Okitsune Gal Katabami-san

Okusan

Old Swordsman and Kid

Omiai ni Sugoi Komyushou ga Kita

Omote demo Ura demo Ijimerareteru

Onani Master Kurosawa

Once More

One-Armed Amy

One Day a Message Window Appeared Out of Nowhere!?

Onee-san wa Joshi Shougakusei ni Kyoumi ga arimasu

One Piece Academy

One Point Advice Yankee

One-Punch Man (Webcomic)

One Room, Hi Atari Futsuu, Tenshi Tsuki

Oniichan ha Oshimai - Petit Onimai Manga! (Doujinshi)

Onii-chan Is Done For!

Onii-chan Is Done For! - Bratty Mahiro-chan & Mihari-chan (Doujinshi)

Onii-chan Is Done For! Official Anthology Comic

Onii-chan to Mitsugo no Imouto-tachi

Oniisan no Hikkoshi no Katazuke ga Susumanai

Onizuka-chan and Sawarida-kun

Only Rika

Only Sense Online

Onna Tomodachi to Kekkon Shitemita

Ookami-chan no Ohanashi

Ookami Shounen wa Kyou mo Uso o Kasaneru

Ookii Kouhai wa Suki Desu ka?

Ookii Muki Muki Chiisai Muchi Muchi

Ookiku Nattara Kekkon Suru!

Oomuro-ke

Oppai Momu Hoho Wakatta wa

Ore ga Watashi ni Naru made

Ore ga Watashi ni Naru made (Pre-Serialization)

Orenchi ni Kita Onna Kishi to Inakagurashi Surukotoninatta Ken

Orenchi no Maid-san 2 (Hobby)

Ore no Class ni Wakagaetta Moto Yome ga Iru

Ore no Haitoku Meshi wo Onedari Sezu ni Irarenai, Otonari no Top Idol-sama

Ore no Ie ga Maryoku Spot datta Ken – Sundeiru dake de Sekai Saikyou

Ore no Ie no Koakuma Imouto

Ore no Imouto ga Konna ni Kawaii Wake ga Nai - Ayase IF

Ore no Imouto ga Konnani Kawaii Wake ga Nai: Kuroneko If

Ore no Isekai Shimai ga Jichou Shinai!

Ore no Oyome-san, Hentai Kamo shirenai

Ore wa Inu Dewa Arimasen!

Ore wa Subete wo “Parry” Suru

Orient

Osabori Jouzuna Komukai-san wa Ore wo Nogasanai!!

Osake to Senpai Kanojo to no Amaama Doukyo Lovecome wa Nijuusai ni Natte kara

Osananajimi ga Hisabisa ni Saikai Shitara Otagai Kyonyuu ni Natteta

Osananajimi ni Modoritai Bokura

Osananajimi no Ohimesama

Osananajimi no S-kyuu Party kara Tsuihou sareta Seijuutsukai.: Bannou Shien Mahou to Nakama wo Fuyashite Saikyou e!

Osananajimi to wa Romcom ni Naranai

Osananananajimi

Osasete! My Teacher

Oshi au Futari wa koi ni naranai

Oshiego Kara Nigerarenai

Oshi ga Budoukan Ittekuretara Shinu

Oshimai

[Oshi no Ko]

Osoraku Kanojo wa Ore no Aniki wo Neratteru

Osoto Gohan wo Goisshoni

Ossan, Yuusha to Maou wo Hirou

Otagai Meccha Kawacchatte Ishiki shichau Osananajimi

Otaku Grandma

Otaku ni Koi wa Muzukashii

Otaku ni Yasashii Gal wa Inai!?

Otaku Onna to Danshi Kosei

Otome Alchemist

Otomege Sekai wa Mob ni Kibishii Sekai desu

Otona Gal wa Shitto Sasetai

Otona no Bouguya-san

Otonari no Tenshi-sama ni Itsunomanika Dame Ningen ni Sareteita Ken

Otonari Voice Chat

Otonashi-sou na Danshi no Tondemonai Himitsu wo Shite Shimatta

Oujougiwa no Imi o Shire!

Our Place, Our Time

Our Wonderful Days

Outlaws

Out-of-Season Romantic Comedy Short Story

Overlord

Overly Straightforward Classmate

Oyako de Kaiten Sushi ni Iku Hanashi

Oya ni Urareta Watashi no Shiawase na Kazoku

Pantsu no Hi ni Kakitakatta yatsu (BanG Dream!)

Pan wo nameruna!

Parasite in Love

Pashiri na Boku to Koisuru Banchou-san

Peerless Dad

Persistent Sports Girl

Persona 3

Pest ga Aketara Asobimashou! ~Chuusei Europa Sekai to Gendai Bunmei Slow Life~

Pesu on My Head

Phantom Busters

Piccolina