It's been a while since we've seen the two of them together, but now that they're back in the water, we catch up with the girl. She's wet inside, and she's worried that something's up between her and Hiroyuki. She asks him if he's going out with Hiroyuki, and he says no. He doesn't know if it's something like a couple who's more than friends, but not in a "intimate relation ship" . Okay, so Hiroyuki and Ishiguro aren't really friends. They're just like each other, and they've even had sex.