Lu Cheng, a doctor from a well-connected family who paddled around every day at work, ate and waited to die, was forced to have two patients by another well-connected family. This would have been nothing, if she hadn't agreed to the child to tutor her in physiology...
Lu Cheng: "Why can't you teach me no matter how you teach me?"
Su Du was silent. She couldn't say that she was looking at him during class.
Purpose: Because I am rebellious.