Sawako “Sadako” Kuronuma, known for her eerie appearance and reserved nature, navigates the challenges of high school with the support of her friends, including her boyfriend Kazehaya and former rival-now-friend Kurumi. As college unfolds, Sawako and Kurumi's bond deepens, yet Kurumi yearns for her own romantic connection. Despite her self-doubt and contentment in Sawako's friendship, Kurumi decides to explore the realm of dating. Following an encounter with an insistent admirer at a gathering, a familiar face resembling Sawako emerges as her unexpected savior—revealing himself to be none other than Sawako's cousin. As Kurumi finds herself drawn to this newfound connection, could this burgeoning affection blossom into something more profound?