a series where a gym shorts fanatic uncle makes a beautiful girl who doesn't know about gym shorts wear them and films her. this time, it's a well-behaved and cute girl named mitsuki-chan. she has never worn gym shorts before and is surprised by their sexiness. at first, she blushes but poses erotically as the uncle requests. after receiving a massage from the uncle, she becomes aroused and goes wild with masturbation and sex.
