There's a secret place that everyone in class is talking about... It's an abandoned building where the sparkling girls and rebellious boys hang out. She doesn't know what goes on there, but... an innocent girl who's almost a virgin is brought there, almost by force. Right in front of her eyes, a man and a woman are doing naughty things! What? They're not lovers, so they're doing it? And multiple people? The innocent girl is in a panic, flustered. Then a boy's hand reaches for her crotch! What? I'm joining in too? Caught up in the atmosphere where she can't say no at this point, she engages in her first ever group play... An innocent girl who has sex with multiple men in one day. Once she gets over that hurdle, there's no stopping! Before she knows it, she's joined the ranks of slutty girls on the fast track to becoming a slut! But honestly, she doesn't mind, because it feels amazing.