C214 torment

"Miss Nguyen, be careful. If you fall, stand for another hour." palace mama's stern voice came out.

Ruan Xiaonuan's head did not dare move, and could only lift her eyes. She felt that these run-down books weighed over a thousand kilograms, and her neck was about to break, so she could not move it. His two hands had to be placed in front of him in a very orderly manner