Hearing the voice outside, Tang Chen's face showed a hint of helplessness.
When he opened the door, it was Cao Ying. She stood prettily at the entrance, and when she saw the door open, the corners of her lovely lips curled upward slightly.
"I'm not your teacher, so why do you keep coming to find me?" Tang Chen asked helplessly as he looked at the girl before him.
Cao Ying smiled faintly without answering. Familiar with the route, she slipped past Tang Chen and entered the small courtyard in just a few steps.
She had visited frequently these past days and was already thoroughly familiar with the layout here.
She walked straight into the room, her beautiful eyes drifting over the books and pill formulas scattered across the table.
On one hand, she had come because she yearned for high-level pill refinement. Tang Chen truly was a good teacher, and his previous guidance had benefited her greatly.
On the other hand, she was curious about Tang Chen himself. She was curious about his strength, his pill-refining skill, and the experiences he had gone through over the years.
As Cao Ying wandered around, she casually picked up a book from the table and asked curiously, "What have you been reading these past few days?"
When Tang Chen saw the cover of the book in Cao Ying's hands, his brows rose. He hurriedly lifted a hand to stop her. "Kids shouldn't be looking at that!"
But Cao Ying moved faster. Her small hand had already opened to the first page, revealing an intricate illustration of a man and woman entwined in intercourse.
The artwork was exquisitely detailed, displaying every part of their bodies without reservation, enough to make one's blood surge.
Cao Ying did not scream or make a fuss. She merely