At the company camp, Riku and his sister tease each other about how sweet they are. Riku says she's been making him sweets all day long, but now she has to make them for her boss because he's at the camp. He teases her about not making him any sweets, but she says she doesn't want to upset him. She teases him about not being nice enough to her, and he says he'll be nice to her when he gets home. She says he should be nicer to her because she made him some sweets, too, but he says it's too late, and she'll have to make him another one. He's not going to be nice, she says, and they're going to have to have a fight. They get into a fight, and Riku grabs some cream and squeezes it into his chest. He squeezes harder, and the cream starts to melt. They're interrupted before they can taste the sweet stuff. He says they were interrupted before he could taste it, and then he says they tasted "so incredibly sweet" .