The seductive mature woman Michiru Kujo makes her first appearance in Fitch! I came to Tokyo to take university entrance exams and ended up staying at my uncle's house, a lawyer, for a while. His wife, Michiru-san, is a lingerie designer and was supposed to help me with my studies. However, seeing her sophisticated beauty and her figure clad in luxury lingerie, I, a country bumpkin and still a virgin, couldn't concentrate on my books. Then, Michiru-san pressed herself against me and brought her lips close, whispering, "Oh, are you getting an erection because of me?"