OTokyo 7th Sisters: Bokura wa Aozora ni Naru

O100% Pascal-sensei

OShinChan

ODrive Head: Tomika Hyper Rescue Kidō Kyūkyū Keisatsu

Osin Nanatsu no Taizai

OSword Oratoria: Is It Wrong to Try to Pick Up Girls in a Dungeon? On the Side

OWorldEnd

OAnonymous Noise

OEccentric Family

ORIN-NE 3

OTwin Angels BREAK

OSexual Sacrifice

ONight is Short, Walk On Girl

OTsukigakirei

OLove Tyrant