Hoka no Otoko no Seieki de Harande mo Ii Desu ka...? 4 - Akogareteita Senpai no Mucchiri Binyuu wa Boku no Mono de wa Nakatta -Shiritakunakatta Kanojo no Himitsu-

Synopsis

The protagonist, Takayuki Sugawara, has spent his entire life—since he was a child—as a childhood friend of his older cousin, Saori Ayakawa, due to family circumstances. When he went off to college after passing his entrance exams, he began living on his own, but even after that, Saori continued to look after him, and their relationship as childhood friends remained just as it had always been.

One day, Saori—who was in the same broadcasting club as the protagonist—was tapped as a last-minute replacement to host the afternoon broadcast, and she began to attract attention throughout the school. As he watched Saori receive love letters and confessions of love, the protagonist realized he wanted to be by her side not just as a childhood friend, but as her boyfriend. He mustered the courage to confess his feelings, and she accepted him; they successfully became a couple and began spending happy times together.

The two of them had no idea that Kouzuki, the broadcasting club’s advisor, was watching them with a cold, calculating gaze…