Li Yilan was at a bar?
She watched as Li Yilan entered a room and she didn't dare follow her in fear of getting caught. She took a few more pictures of her entering the room.
She waited several minutes until she saw Li Yilan leave the room again and go down a hallway. She followed her all the way and watched her enter another door.
She waited outside once again, but after several minutes, Li Yilan still did not get out. After careful thought, she cautiously pulled the door open slightly and peeked in to find that there was another hallway that was well-lit and empty.
She walked in, looking side to side and saw that there were several golden doors. Not knowing which one Li Yilan is in, she tried pulling on one of the doors to find that it was locked.