Japan, Year 3017 The world was full of AI. The robots, which were now able to be made for cheap were walking around everywhere in various places and there existed a place that engineers of 1000 years ago only dreamed of. Out of all, the development of Erotic was magnificient. Those robots that satisfy the sexual desire are called Sexoroids and there are sold like the orgasm hall Sofa "SO-5. Start Successful" Give commands to Battleroid "Sofa", modified Sexoroid for battle, and aim for the championship in the battle tournament of Battleroids and battle machines. However, there will be "humiliation" if you lose the battle. Since the view is on the main character, the sex scene contains a scene with his own partner stolen for sex.