Yoiko Yamase

Saiko, a bisexual college student, was in love with Satomi, her father's mistress who had looked after her since childhood. Around this time, her parents began discussing divorce, and her father agreed to his wife's request, resulting in the divorce being finalized. Saiko was shocked, but secretly rejoiced at the prospect of living with Satomi. However, when Satomi and Koji showed no intention of marrying, Saiko grew increasingly frustrated…

Koji has lived his whole life in the shadow of his brilliant older brother, burdened by insecurity and self-doubt. His only refuge is the bar "Arles," until one night he is humiliated by the intimidating regular Soma and harmed by Soma's subordinate Endo. Shattered but determined, Koji begins a twisted path of revenge—haunting Soma with relentless silent phone calls that slowly break his composure. As Soma unravels, Koji discovers a disturbing sense of power and comfort in this cruel game, pulling him deeper into a darkness from which he may never return.