Arriving at Half Mountain Small Courtyard,
Lu Qing rarely failed to see his master practicing boxing in the open space in front of the door.
He looked inside the house and found that the Medicine Room's door was still tightly closed, with a faint scent of medicine coming out.
Knowing that his master was still engaged in alchemy, he didn't make a sound to disturb him.
Instead, he placed the bucket in the corner and began to sweep the courtyard with a broom conscientiously.
Little Yan, seeing her brother cleaning, also dragged out a small broom from the corner to help.
When the siblings had nearly finished cleaning the entire courtyard, Lu Qing finally heard a door opening from inside the house.
Following that was the elder doctor's hearty laughter.
"You two, have you been here for long?" he asked upon seeing Lu Qing and his sister cleaning the courtyard.
"Not for very long, less than half an hour," Lu Qing replied truthfully.