C541 Wily stratagem

He knocked lightly on the door of the study, and only opened the door after he heard the voice, "Please come in." He looked at Old Master Sheng, who was sitting at the study table and wearing reading glasses.

"Grandpa!" Old Man Sheng called out in a low voice.

Old Master Sheng raised his head slightly and looked at her. He took off his glasses and motioned for her to sit on the sofa at the side