It's been a long time since the two of them left the house, and now they're in the subway. They've been waiting for directions, but they can't find their way back, so they head for the service hall to find their sister. They run into each other, and zhengshu runs off to find his sister, who's waiting for them. Aww, that's embarrassing, right? Aww. Geez, this is awkward. . But then, shu says he's there to pick up his sister. He apologizes for running off with jiang, but shu's here to take care of his sister . shu apologizes again, but this time shu wants to talk to his sister first. He wants to know why jiang didn't call him, and then he wants to tell shu that he was worried about him in the rush to find her. He tells shu to stop talking to him, but then shu goes off to buy some cake, which he'll remember for the rest of his life.