On the eve of her wedding, the younger sister decides to stay at her older brother's house, close to the wedding venue. Spending time together again after so long revives the warm memories they once shared. Beyond the age gap, a deep bond exists between them—one that now fuels rising emotions. Overcome by loneliness and longing, they give in to irresistible urges and become physically intimate. Though they understand it's wrong, their hearts refuse to stop. Drawn together by an inexplicable force, the siblings repeatedly cross the line into forbidden love. Their passionate encounters become the sister's final, bittersweet memories before marriage. Love, guilt, and the future that awaits beyond farewell.