“Hyoui” – is a cyoa hentai html game, in which your virtual character suddenly transported from his world into an unfamiliar one. These genre of Japanese fiction called isekai. All you have to do is just help the protagonist of this game to choose one of the three objects that he finds in a pure white room: a dull grey cube, a bowl of rippling water, and a shimmering bubble. Just choose and touch one of this mysterious objects to start a new porn story with a unique ending…