C539 You're Dr Ning's Student?

After a few minutes of silence, Mu Shengchen said, "Don't move, little darling. Daddy and mommy will be out soon."

The little darling obediently hummed and heard the sound of the door closing. Then, the faint sound of water splashing could be heard.

A faint sense of loneliness welled up in his heart. He lowered his head to look at the lunchbox in his hand