Gravure model jun arrives at an esthetic salon unaware of its 'sensory development program.' despite suspicious explanations and embarrassing questionnaires, she expects results and undergoes the treatment. before she knows it, her entire body is slippery with oil, her sensitive body is massaged, and mysterious oil stimulates her erogenous zones, forcing her sensory development. overwhelmed by pleasure, her consciousness blurs and her reason collapses! eventually, she finds herself craving the next program. she squirts excessively, arches her back intensely, and orgasms wildly!! the escalating erotic drainage program pushes jun beyond her limits...