It's a sunny day, and coach cheng has prepared some flowers for the senior, but he's worried that they'll be ruined in the future. He asks her why she's crying, and she says that it's because of the hot weather. He tells her that he'll buy her some water to cool off, and then he tells her to open a can of "shaken cola" , which can get on her skirt. He warns her not to open the can too fast, but she says she'll have to take a tissue with her, because it splashed all over her clothes. She tells him to stop talking about him, and he says that he is nothing, and that's why they're having such a good time. He notices that the senior is a bit different from before, and they start talking about the weather, which seems to indicate that the weather's getting worse. They decide to hurry back, and the two of them start getting wet. They wipe each other's hair off, which is hilarious, because they've been getting wet together all day. Coach cheng says that the whole thing was supposed to just be a "let's go for a walk" thing, but now it seems like there's more to it than meets the eye.