It was a karaoke room.
Seems as though they had rented out a cheap room where the cameras won't work too well to catch their actions, where no one would have minded upon seeing a high school girl who seemed delirious being caught by the young boys into a karaoke room.
Li ZiChen watched everything while holding down the livid emotion swirling in his heart. He felt as if he wanted to enter the screen, to be there and to bring AiLin out of the hands of those people but he can't. It kills him to think about what he could have done if he was there but he wasn't. He wasn't able to be there for her.
"She's unconscious finally," said someone with a laugh. When he walked into the camera, his red hair burn the screen. This young man had a plate name on his uniform that was large and clear, 'HangZhou'. It was the son of the politician, HangZhou, as well as OuYang's boss according to AiLin's newest information from the kidnappers.