Shenzhen - Dilemma

Ah! That's right!

Lu Qiang suddenly had a realization.

He looked at his two friends who were playing the shooting game by holding two toy rifles as a weapon. He totally missed that other possibility and realized it because of this.

How can he overlook the possibility of it being done by two people? One could possibly be situated to spy on him in a closer range while the other one is responsible in eyeing him from the distance.

Indeed.

He did sense that he was being watched in the classroom and everytime he's outside, and it did seem weird that he couldn't sense it so much while in the classroom.

But how did he know that he's being watched in the classroom?

Lu Qiang recalled that there is one of the twenty story high building apartment that could be seen from their classroom window.