Eros d'O －Ｏ嬢の物語－ 官能の奴隷 (2008)
The story follows Otoha Kirishima, an introverted music university student who struggles to find her breakthrough as a flute player. She encounters Sumihiko Kouno, a world-renowned conductor visiting the university as a guest professor. Under his intense and authoritative teaching style, Otoha faces unconventional lessons that challenge her inhibitions and push her to confront her hidden desires, leading her down a path of deep obedience to his commands as she undergoes a personal transformation.