Hidden away in a private house in central Tokyo, an underground esthetic salon promises to make clients more beautiful than ever before. Drawn by rumors, I visited—only to find a far more unsettling atmosphere than expected. The treatment room was cramped, the gown flimsy and revealing, and the entire place exuded a strange, eerie vibe. Still, I endured it, trusting the therapist’s explanation that the special oil used would deeply nourish my skin. But in that moment, I almost regretted staying. The oil massage turned intensely overwhelming, delivering relentless waves of pleasure. Convulsions and explosive squirting orgasms shook my body repeatedly, pushing me to the edge of consciousness. Now, completely addicted to that overwhelming ecstasy, I find myself trembling outside the salon once again, craving another extreme session.