C451 Going Through Old Scores with Each Other

"Knock knock."

At this moment, the sound of knocking on the door suddenly rang out. Mu Wanqing, who was in a daze, was startled.

She came back to her senses and turned to look at the door. "Who is it?"

Only then did the door open. Chenchen poked his head in and asked carefully, "Mommy? Are you busy?"

"It's Chenchen."

Mu Wanqing smiled and turned around. "What's the matter? Come in and talk