One week later, Hirokazu and his "naked childhood friend" are back in Japan for a vacation. They're having sex in a bathhouse, which is a euphemism for a brothel. The two of them have been practicing their moves in the pool, but they can't seem to keep their focus. They decide to go to the pool and practice some more, but not without a drink. As they're getting ready to go, the two realize that they've been practicing too hard, and that they don't have enough time to practice again. They agree to take a break, and then they'll get back to practicing again. Hiroyuki, who's having sex with his childhood friend for the first time, is all, "I'm so much better" . He tells his friend that the other day, he couldn't help but think about her, and he's convinced that she's getting more and more aggressive with each passing day.