Throughout her elementary years, Sayaka Saeki excelled in academics and activities, embodying the perfect student. However, a romantic confession shatters her composed world, revealing the complexities of emotions. Transitioning to middle school, Sayaka befriends Chie Yuzuki, a senior, and explores a new perspective on relationships. Their bond deepens through mutual confessions until it unravels, leaving Sayaka disillusioned with love. Determined to prioritize her independence in high school, Sayaka's resolve wavers when she encounters classmate Touko Nanami, forcing her to confront the clash between her logical approach and emotional desires.