C148 Laboratory

The last time Lin Dong got close to Lin Dong, he didn't know it was because he wasn't prepared for it.

Now that he was on guard, he could naturally feel it.

He knew that something was approaching him.

This sound was very soft. If not for the silence of the night, even he would not have heard it. At this moment, Liang Sisi was so nervous that she even stopped breathing.

About a minute later