MRSS-182 - Highly defended, skilled pharmacist, lured into a sexual situation by a mentally immature colleague. Yumimura Yumi.

Yumi is a pharmacist with strong defenses and a sharp mind. Takahashi, Yumi's colleague, is jealous that Yumi was promoted first and tries to seduce her in every way possible. Instead, he is caught putting sleeping pills in Yumi's drink and is on the verge of being reported to the police. They try to have a conversation at home with her husband, but unexpectedly, the husband is absent. Takahashi, on the verge of his life ending, makes a last desperate attempt to attack Yumi at her home!