Our Last Crusade or the Rise of a New World
Overlord II
Otherworldly Munchkin: Let's Speedrun the Dungeon with Only 1 HP!
Onigiri ni Naritai Cogimyun
Onmyo Kaiten Re:Birth Verse
Origin: Spirits of the Past
Overlord
Onipan!
Overlord: The Dark Hero
Overlord IV
Oretachi ni Tsubasa wa Nai: Hadairo Ritsu Kyuuwari Zou!?
Onimusha