After her relationship with her boyfriend deteriorated, Asuka confided in a male friend, becoming emotionally confused. The next day, she ended up inviting him over to her place. That afternoon, her boyfriend was scheduled to visit, and during the two hours he was out shopping, her senior—whom she had long admired—showed up. Craving sex, Asuka actively engaged with him in passionate intercourse, experiencing an intense and eye-opening encounter that became a significant moment of discovery for her.