The lights in the purchasing department of "Xingtu Internet" were still on. Yuan Ruiwen was sitting in front of his workstation, typing the last period on the keyboard with his fingertips. A system prompt "Purchasing list verification completed: 127th time with zero mistakes" popped up on the screen. He rubbed his sore temples and took out a mint candy from the drawer - this had been his habit for three years as a "cyberpsychologist purchasing clerk". Every time he checked the data, he relied on the coolness of the mint to suppress his nervous tension.