Mei Tachibana fell head over heels for an upperclassman she met through her university guitar circle, and on his suggestion, she reluctantly agreed to film a video. One day, that footage was suddenly leaked online. The incident shattered her emotional stability, pulling her into the chaotic world of a promiscuous fraternity. Losing her dream of a singing career, she replaced the microphone with a cock, beginning to sing in an entirely new way. Amid sudden exposure and turmoil, her life took a drastic turn.