C62 Formidable(2)

"Yes, this lock can be easily unlocked. You just need to go home and try it out."

Qiao Xia said as he turned the hairpin in his hand, following the direction of the keyhole. She had temporarily learned to unlock it when she was tied up that year, and it hadn't worked since.

"Sister Qiao, you're so knowledgeable!"

Xiao Ling smiled at Xiao Zhai, praising Qiao Xia