Cheng Fang struggles to express his feelings to Big S, and Weijian suggests he calls in to her radio talk show to seek advice. Big S is unable to recognise Cheng Fang's voice when he calls in. She tells him to record down his feelings and play it back to the girl he likes. Cheng Fang does exactly that, and Big S is left stunned. At this moment, Cheng Fang's ex-girlfriend Wang Jingjing suddenly appears.
Mable tries to pair Big S with Cheng Fang, causing Big S to feel awkward. She shows Cheng Fang her messy room to let him know how incompatible they are. Cheng Fang is scared of dogs and when he sees one, Big S protects him. He falls in love with her as a result but is unable to express his feelings.
Zhang Weijian works in an advertising agency and is often bullied. However, he bears with it, with the aim to retire at 55 years. He gets to know Xiao Kaixin (a.k.a. Big S), an optimistic woman who aims to help as many people as she can. Weijian thinks she is a volunteer worker, but Big S is actually a radio presenter.