At that moment, Jiang Yichen's expression changed, and he spoke with some difficulty, "Sorry, but I can't hold it in any longer. Can we talk about this later? I have the key to prove I live here, you can come to my place and see for yourself."
Qing Chen could now say whatever he wanted with the face of Zard and not be afraid of being exposed.
But it was different for Jiang Yichen—if Qing Chen really approached him with a math problem, he would definitely be exposed.
He wouldn't be able to answer!
The Upper Three Districts were unlike other areas—they had extremely strict security. Residents could report any suspicious persons directly to the PCE Security Management Committee.
At that moment, Jiang Yichen felt like he could no longer hold it in, but as a Time Traveler, he had to be cautious to avoid arousing suspicion from the neighbors.
Qing Chen chuckled and said, "Alright then, good luck with your exam."
After saying that, he turned and walked outside.