I thoroughly enjoyed the peek-a-boo temptation drama woven by three flat-chested beauties: a college student swaying on a train, a maid supporting a household, and a clerk working at a shoe store. The interplay of women's shame and excitement, sparked by accidental glimpses through summer's thin clothing, creates an unmissable plot. The three—Asakura Kotomi, Miyaji Yurika, and Tanabe Riko—each showcase nipple flashes in different scenarios, with realistic direction that highlights everyday gaps. Tanabe Riko's innocent aura and beautiful breast balance are exceptional, and the innovative finish of ejaculating on her nipple and kneading it made me burst with excitement. While Asakura's direct camera gaze is addictive, Miyaji's scene had a slightly unnatural shoe store setting, but overall, the greedy pursuit of pleasure and flushed climax faces are irresistible. This is a work that fully delivers on the unique nipple play of small breasts.