Tongtong, then I'll leave first. Be careful at home by yourself. Don't open the door for strangers. Just press the button when you have something to do, and your mother will come over soon.Well, mom, I understand, you should be careful.On a morning as usual, he responded to his usual advice with a sweet smile, and when he heard the sound of the door being locked, the corners of his mouth were back to a expressionless position.I didn't hear her footsteps as usual, so I listened with my ears on my back for a while, but still no. I lost my patience, stopped caring about her, and didn't want to get up, so I just stayed there.