A work showcasing Nagase Hiroto's first gonzo sex experience. Despite his nervousness, he spends time with A-chan, who gently guides him through the encounter. As their bond grows closer, a warm and intimate atmosphere develops, making their affectionate scenes in the bath especially captivating. After sharing a shower, the mood gradually turns erotic, leading naturally to sex—an unfolding that deepens the sense of their connection. Nagase's shy yet clearly pleasured expressions leave a strong impression, drawing viewers deeply into the experience.