Su Cheng said seriously, "I'm very serious. These are the rules. Although it's a childish act, it represents a contract between us. Even if you are a policeman, you cannot betray our conversation. Otherwise, there's nothing to talk about."
Xu Xuan refused to listen and said, "Don't try to trap me. If you use the agreement to harm me and make me break my principles, then I will not abide by the agreement."
"I won't let you break your principles," Su Cheng said. "Come on, repeat after me, pinky promise..."
Xu Xuan was speechless. She thought of a saying: even the oldest man has a childish side. She hummed along with Su Cheng as if she had a toothache, her face full of helplessness.
Su Cheng stood up, walked to the window, glanced outside, and casually drew the curtains. He then walked to
