Trapped in the world of music, Rei Kuroshima (20), an active music university student, embarks on a relentless journey of first-time experiences she's never known before—first sex with a school teacher, intimate service play, workplace sex, orgasm control using restraint toys, and her first threesome. Stepping into this unknown world, she reaches climax with entirely new sensations, losing herself completely. Witness this elegant, beautiful woman abandon her usual refinement and indulge purely in pleasure. This marks the beginning of her new life, after cutting ties with her path in music.