After school, Aoi, a female student, is taken by her close friend Shuri to a certain place. In the room is a middle-aged man. Without hesitation, Shuri straddles the man's lap and kisses him. Shocked by her friend's sudden actions, Aoi watches as Shuri says, "Aoi-chan, why don't you join us in kissing?" Although Aoi refuses, saying "I can't," she finds herself becoming aroused as she watches their intense kiss, feeling moisture between her legs. Then the middle-aged man joins in, and Aoi experiences a special act as she is tormented by both of them.
