The biggest emergency since the series began! Traveling by car with married woman Mio, they arrive at an inn surrounded by mountains. Mio's pussy is already dripping wet with tension and anticipation at meeting a man for the first time. In the open-air bath, he licks her whole body, and when he eats her pussy, her body trembles and she climaxes. After dinner, he plays with Mio, who has changed into a yukata, and has fun playing with her, but to his surprise, Mio says she can't stay the night! He desperately tries to negotiate to meet her again the next day, but what will happen on this trip?