19-year-old Uui, a college sophomore, enjoys her days living at her uncle's house, where she maintains a secret affair with him despite already having a boyfriend her own age. While her relationship with her boyfriend remains intact, her bond with her uncle continues to deepen. After getting out of the bath, the moments they spend together in bed—when their bodies and hearts naturally intertwine—have become something deeply special to her. She ignores calls from her boyfriend, constantly craving her uncle instead. What she feels is a mix of anxiety over being discovered by her family and the thrilling pleasure of living a forbidden life. This bittersweet yet captivating relationship unfolds like a taboo romance.