Li Yunheng's belief in life - the country and Gu Zhien.
Gu Zhien's life-saving rule - stay away from Li Yunheng.
Li Yunheng: "Your ex-boyfriend?"
Gu Zhien: "Does it have anything to do with you?"
Li Yunheng: "How long have you been together? When did you get together?"
Gu Zhien: "Captain Li, are you taking too much care?"
Li Yunheng: "Two years ago, when you slept with me, were you together?"
Gu Zhien: "Is there any connection between the two?"
Li Yunheng: "Curious. I'm curious whether I'm your cheating partner or just your one-night stand."
Gu Zhien: "No, you are just a free duck."
(This is a story about special forces VS female surgeon.)