Bab 628: Black and white

" What?" Tan Jing looked at the door that has been suddenly closed behind her. At first, she thought that it was a prank by Yu Pan but when the latter did not jump out and shout 'surprise', Tan Jing grew a bit worried as she walked over to the big glass door of the company and pushed it a little. She expected that with someone left behind, there was no way the security personnel will close the door shut like this but to her surprise no matter how many times she pushed the door, it did not open!