Genre: Slice of Life

Ouji-sama no Tomodachi

Ouji-sama Nante Iranai

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

Otoko Tomodachi Girl

Otaku Onna to Danshi Kosei

Otaku ni Yasashii Gal wa Inai!?

Otaku ni Otaku na Gal-Gurashi

Otakon no Susume!

Oshieko Kara Nigerarenai

Oshi no Ko

Osananajimi to wa Rabukome ni Naranai

Osananajimi no Ohimesama

Osananajimi ni Modoritai Bokura

Osananajimi ga Mamasugite Tsurai

Osananajimi ga Hisabisa ni Saikai Shitara Otagai Kyonyuu ni Natteta

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

Orenchi ni Kita Onna Kishi to: Inakagurashi suru Koto ni Natta Ken

Ore wa Yuka de Nemasu!

Ore wa Subete wo “Parry” Suru

Ore no Kokan wa Bishoujo Datta no ka

Ore no Iinazuke ni Natta Jimiko, Ie de wa Kawaii Shika Nai!

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

Ore da Mada Honki o Dashite Inai

Oppai Momitai-tte Sakendara, Imouto no Tomodachi to Tsukiau Koto ni Narimashita