"If you can make him ejaculate with a sumata sex session within the time limit, you'll win 100,000 yen!?" This time, the one taking on the special project is Tsubasa , a competitive beauty who looks great in summer. After a fight with her boyfriend, she's not sure what to do with her perfect body, so we immediately take her to the car studio. Tsubasa is easygoing but also quite Kokoro , but when persuaded, she gives in and tries sumata sex, blushing and saying, "Sorry I'm so bad at it." When they try to apply oil all over her body, she shrinks and laughs... Could it be that she's just incredibly sensitive? As expected, when her nipples are played with, she can't move with pleasure, and even before penetration, she squirts in convulsions. Even her personality changes, and she moans in a sad, sweet voice. They get along well and cum inside each other in a wet, slippery closed room! Money doesn't matter anymore!