Diane, a young woman from a modest background, saves up for a long-anticipated sleepover at her best friend's house, eager to experience freedom and fun among peers from wealthier backgrounds.From the excitement of preparing and leaving home to the lively afternoon filled with games, snacks, teasing, and bonding with new and familiar faces, Diane navigates social pressures while trying to fit in. As evening falls, casual laughter, pizza, and music give way to the first taste of alcohol, setting the stage for a chaotic night that will blur the lines between celebration and trauma. Throughout, Diane's internal thoughts reveal her anxieties, aspirations, and growing curiosity, creating a vivid, immersive foundation for the story's canon events.