When a girl in uniform comes to their usual hangout room and her friend suddenly starts having sex right in front of them, no one pays any attention to them, and the young men just play games, read manga, and enjoy their own pastimes. When they get bored of the game, they have sex, when they have sex, they cum inside each other, when they cum inside each other they continue playing the game... Young people's pussy-sharing sex is beyond the scope of adult common sense.