Dual Rules?

When Lin Sanjiu lifted her hand, the thought "Why am I doing this?" surfaced in her mind. Nevertheless, the suspicious question did not stay long enough in her mind to stop her next movement. She grabbed the brass handle tightly and twisted it. A clank sounded as the mahogany-colored wooden door to unit 320 opened with a creak.

Then, she stepped into the apartment unit—

Let's rewind to twenty minutes before when Lin Sanjiu met Livia in the washroom.

——

Lin Sanjiu stared fixedly at the head of black hair that was slightly higher than the door.

The lack of space in the cubicle had hindered her movement. She couldn't fully extend her wings. Hence, she went for another alternative. As she summoned her [Tornado Whip], she sneakily climbed on top of the toilet lid. 

After she claimed a relatively higher spot, she said coolly, "I didn't lock the door. Just push it."