One Week Friends
Overlord
Our Last Crusade or the Rise of a New World
Overlord: The Dark Hero
Overlord: The Sacred Kingdom
Origin: Spirits of the Past
Otaku no Video
One-Punch Man
Operation Han-Gyaku-Sei Million Arthur 2nd Season
Orb: On the Movements of the Earth
Otome wa Boku ni Koishiteru: Futari no Elder The Animation
Onimusha