Yuna, a wife, met her husband's subordinate Miyagawa through an introduction. Yuna and Miyagawa, whose hobby is walking, hit it off and they began meeting up alone in the mornings more and more often... One day, on the way back from a walk, Miyagawa dropped by her house and confessed his feelings to her. Yuna felt guilty for unconsciously giving him hope for a relationship, but Miyagawa pushed her down and violated her as he wanted to express his feelings to her. Yuna's body reacted sensitively to his forceful assault...