Ryōta Ōsaka as Hiroshi, the brains of the group who is surrounded by a somber aura. The teaser also introduces the main voice cast for Ao Oni - The Animation -, including: In the TV series, everyone moves in together and has comical daily misadventures as roommates. In the original Ao Oni game, a quartet of young people explore a haunted mansion only to be pursued by a malevolent monster. A new teaser trailer is now available online for Ao Oni - The Animation - , an upcoming short form TV comedy based on the spooky freeware horror game by noprops.