C783 Bulwark of Stone and Spirit

"Are you done or not? I think you don't want to work anymore!" The principal picked up the phone and shouted.

"No, Principal! They have entered your office!" The old teacher said with a bitter face.

"Enter my office? Did you open the door for them?" The principal was so angry that he almost threw his phone.

"No, no, I don't have the key! They opened it themselves!"

"Damn it