As the invigilator called, Fang Qiu stepped forward and entered the No. 1 exam room.

From the outside, the windows of the classroom had been sealed up so tightly that the situation inside could not be seen at all. But after entering the classroom, Fang Qiu found that the room was unusually bright.

It was not about the lights.

It was because a window on the other side of the room which faced the drain wasn't covered.

An old man was ...