[A work for women who like soft masochistic men] Uehara is suddenly assigned to a women's underwear manufacturer. Due to his lack of sexual experience, he is unable to hide his embarrassment at working with women's underwear. Inaba, who is a senior in the department, although he is younger than Uehara, becomes his instructor and teaches him about "women's underwear." Uehara becomes flustered by the extreme nature of the material, and Inaba's sadistic Kokoro is thrilled. In the name of "guidance," Uehara, who was sexually naive, is gradually educated to become a perverted masochistic man.