"Wang Lan, Chen Xiaoping suddenly left the dorm."
Around five o'clock, Wang Lan was dropped off at the school gate and was about to head to the dormitory when Xiao Ai sent a notification on his phone.
After Chen Xiaoping had received Wang Lan's red envelope, a clone of Xiao Ai had entered Chen Xiaoping's phone. Even though there was nothing on that phone, as long as Chen Xiaoping carried it with him, he could be located.
Wang Lan turned left, entering a cafe. Not long after, Chen Xiaoping, looking somewhat flustered, walked towards the school gate. The school closed its gates around 5:30 PM. After that time, unless one had special privileges, no one was allowed in or out. The only exceptions were Saturdays and Sundays, when the gates stayed open until 10 PM.
It looked as if Chen Xiaoping was trying to get out of the school gate before 5:30 PM.
