Koizumi-sensei, a female teacher who came to stay for one night for a preview of a school trip. - She looks great in a suit and black fishnet tights. - She doesn't seem to be getting along with her husband these days, and when she calls from her travels, her husband doesn't answer the phone. - Meanwhile, she is told by the vice-principal who accompanied her that she has shared a room tonight. - She reluctantly agrees. - At night, the vice-principal turns over her futon and secretly reaches out to her body... - While rubbing the fair-skinned beautiful legs peeping out of her bare yukata, when I started licking her protruding breasts nipples and earlobes, her small pant voice. - What will the female teacher do to the gradually escalating behavior of the vice-principal...?