At 6:15, Lin Saien stood in front of the office building of Qixing Art Training Group. The early autumn wind was cool, and a few fallen ginkgo leaves brushed against her ankles. She wrapped herself in her suit jacket and quickly opened the glass door. The little girl at the front desk, Zhang Qi, was chewing buns in front of the computer. When she saw her coming in, the food in her mouth almost spit out: "Manager Lin? Why are you so early today?"