A documentary-style portrayal of M-girl Hitomi Horiguchi passionately and obsessively dominating an individual known for enjoying anal intercourse. Each time she strikes him, a sinister gleam flashes in her eyes, revealing an expression blending pleasure and pain. In a sweet, alluring voice, she pleads, "More... please hit me harder..." Responding to her demands, her body gradually reaches its limit. The reactions she displays throughout this training session exude an intense presence that transcends mere pleasure, probing deep into the essence of human nature.