Similar to おねがい☆ティーチャー

Kaina of the Great Snow Sea

All Out!!

All You Need Is Kill

Sweet Reincarnation

Occultic;Nine

Okitsura

Okusama wa 18-sai

Oku-sama wa Mahō Shōjo: Bewitched Agnes

Ogenki Clinic

Okoshiyasu, Chitose-chan

Fish in the Trap

Love Is Like a Cocktail

Ozanari Dungeon

Please Tell Me! Galko-chan

If My Favorite Pop Idol Made It to the Budokan, I Would Die

Ojisan and Marshmallow

Ojisan wa Kawaii Mono ga Osuki

Ojarumaru

Oshin