Massage Parlor "Shoutai" – Nao Yuki visits after hearing rumors of a special stress-relief treatment involving tickling. Known for her strong-willed personality, Nao finds herself at the mercy of a suspiciously talkative masseuse who bombards her with relentless tickling, reducing her to uncontrollable laughter. This installment features intense tickling therapy, blending half-truths and half-lies in the masseuse’s explanations—possibly useful as verbal manipulation tactics. It's striking to see a normally aloof woman break into constant giggles, with a particularly memorable scene around 2:23. Despite her pre-shoot survey response stating, "Sometimes it doesn’t work, so I'm not sure if I'm ticklish," Nao proves to be extremely sensitive—laughing hysterically no matter where she's touched. While certain spots may briefly seem immune, it's merely a matter of technique. Using proper kneading, soft touches, or rapid fingertip scratching, the masseuse twists Nao’s body into fits of laughter. Her armpits are especially vulnerable, and her sides appear extremely weak. Nao writhes in confusion, repeatedly gasping, "Why!? Why is this so ticklish!?" A must-watch for fans who enjoy shy yet cooperative girls enduring tickle torture. Highly recommended—don’t miss this one!