Hikari Koi, a new announcer who was chosen as the flagship program of the station and married a professional baseball player, had both her work and private life going smoothly. Her senior colleague, veteran female announcer Mae Hojo, also doted on Hikari, seeing her as a promising subordinate and even as a woman... However, her senior colleague Kazuya Kaminawa was jealous of Hikari for taking away her position and the heart of Mae, whom she had admired for so long. One day, after Kazuya accidentally saw Mae and Hikari having secret sex, she could no longer suppress her jealousy...
