Elegant 43-year-old Yuka Mizuno begins her MONROE exclusivity with a midsummer, sweat-soaked sex documentary. She arrives at a park already drenched in sweat beneath the sound of cicadas, and filming starts without a shower. Shy at first, she soon mixes sweat, saliva, and arousal with her partner until all restraint disappears and she surrenders completely to instinct in intensely passionate mature sex.