System Is Evil

The school director took the key and frowned. He shouted, "Check the surveillance cameras here to see who touched the key."

Jacob slapped his head and said, "Yes, the door lock of our dormitory is too old. I just borrowed some iron lubricant from someone this morning, and it dripped."

Yasmin was delighted when she heard this, "That's easy. We don't even need to check for signs of use. We can just check to see if the lubricant is from the same brand."

Dongle's face had turned pale, and at this time, the surveillance footage from the school security office had been called up.

If there is nothing to do, the place where the student dormitory keys are hung will never be touched. It can be said to be a dead corner in the office.

They fast-forwarded to 5 pm, and suddenly the surveillance footage was cut off for five minutes...

"Smart as a whim!" Nancy sneered and called up the footage from the monitoring room during the same time period.