"Thud, thud, thud."
The knocking sound erupted, jolting Lin Siyin from her recent slumber. She glanced at Lu Zixun next to her, and her heart relaxed.
After putting on her shoes and getting out of bed, Lin Siyin, who was just about to open the door, suddenly stopped as if she thought of something.
If the visitors were Gui Xiaomeng and the others, they would have used their room cards to open the door instead of knocking.
If it wasn't Gui Xiaomeng and her companions, then who could it be?
Just as Lin Siyin was about to peek through the peephole, she thought of some cases and decided to stay still.
She quietly stepped back to the bedside, covered Lu Zixun with the blanket, and ignored the knocking sound.
Soon, seeing that no one was coming to open the door, the knocking ceased.
However, Lin Siyin saw a thin red line extending from under the door into the room.