Chen An narrowed his eyes slightly, "Are you sure?"
Bai Nianxian turned around, his expression calm, "What are you suspicious of me for?"
"You were out for more than three hours?" Chen An looked up at the clock, "It's half-past twelve now, you left the lab at nine."
"You were following me?"
"There are cameras in the lab, I'm not blind."
Bai Nianxian smirked, "Can't I just go out and party a bit?"
"Party my ass, tell me the truth!" Chen An suddenly stepped forward, grabbing his collar, "What exactly were you up to?"
"My sister?" Bai Nianxian's expression didn't change, he let out a cold laugh, "Aren't both my sisters with Mo Nanjue? How can I party with my sister?"
"Luo Xiao!"
Chen An swung a punch at the corner of his mouth, then raised his leg to pin him against the wall, "Who did you go to meet?"
"Someone you don't know."
"Speak up!"
