A paternity test?
Jiang Yan turned his head to look at Tang An, who, upon seeing him like this, asked in confusion, "Otherwise what? Does Professor Yu intend to just go over and tell Song Jiawen that he might be her brother? That wouldn't be appropriate, right?"
He was quite puzzled by Jiang Yan's behavior of looking for someone with Song Jiawen's portrait in hand everywhere, finding it very unlike his usually prudent self. Didn't he consider the consequences?
A handsome young professor, clutching a portrait and combing the campus for a beautiful female student—what would others think?
"Sorry, I really didn't think things through today."
Jiang Yan could tell that Tang An sincerely had Song Jiawen's best interests at heart. He apologized earnestly, but the follow-up actions weren't for him to decide. They would have to wait until his mother arrived and met Song Jiawen.
Including whether or not to get a paternity test.