She didn't turn on the lights because she knew the layout of the house by heart and knew how to get there.
Just as she reached the balcony and was about to pull off the bed sheets, a bolt of lightning struck down and illuminated the balcony. Nie qiuping saw a dark shadow two steps away from her. Seeing a dark shadow on her own balcony in the middle of the night could simply scare a person's soul out of her. Nie qiuping was so scared that her legs went numb. Before she could even let out a cry of surprise, that person covered her mouth. Her body was spun by him and pressed against the wall.
Nie qiuping immediately caught a whiff of you Yi's aura. Her initial anxiety and panic instantly calmed down.
She quickly patted you Yi's arm, telling him to let go.