Diva Mizuki - sandy-haired chick with huuuge tits which you have very likely seen in some erotic games before - is going to try herself in something that will require her being brainy instead of being just sexy. Or at least what she believed if she has determined to play the major role in hentai parody on world renowned videogame"Portal". As you understand from the game the most important idea would be to pass a series of test utilizing portal weapon. This game has comparable notion of the testings will probably be plenty of men in different ways that are sexual and about pleasing missing through numerous portals that will be opening all around Diva Mizuki while she is in testing room. From you as a player this will call for coordination and reaction in addition to the willingness to play simple minigames in nonstop mode. Wanting to check yourself?