Rie Misaki goes on a two-day overnight trip in this first part. A hidden camera captures her from a low angle inside the car, showing her masturbating—does Rie really enjoy this? She continues pleasuring herself for an extended period. Outdoor masturbation and sex also appear in this video. Initially nervous about her first outdoor experience, Rie gradually becomes aroused and lets go, revealing a more open and uninhibited side. This film beautifully captures the deepening intimacy between the two.