Chen Jie had not been up long when Su Yunjin heard a noise.
For over a year now, Su Yunjin's sleep had been light, afraid that Chen Jie would suddenly burst in and harm her and Ruirui.
Now, even though she had no such worries, the habit remained.
Thus, when Chen Jie practiced martial arts in the courtyard early that day, she heard the rustling sound of feet against the ground and the noise of the sleeves brushing with each punch thrown.
Moreover, Chen Jie was careless and stepped on a tile in the courtyard, making a loud noise, which led Su Yunjin to suspect a theft, so she opened the window to take a look.
She saw Chen Jie practicing punches under the moonlight.