550th, you must stand up for me.
Gu Shuangshuang went downstairs with the lock, and when she got to the bathroom, she gently pushed the door.
Inside, Feng Chunhua's voice came through: "Someone's here, stop pushing."
Gu Shuangshuang's lips curled upwards, and after making sure no one was around, she locked the bathroom door from the outside with a click, proudly raised her eyebrows, and left.
Feng Chunhua, hearing someone messing with the door, called out: "Who's out there?"
Outside, it was dead silent, not a single sound.
Feng Chunhua, feeling much better after using the bathroom and pulling up her pants, was ready to leave.
She tried to open the door latch from the inside and pull the door towards her, but it wouldn't budge.
After several pulls, the door still didn't open.
Peering through the crack, she saw that the door had been locked.