Ending at Forty

On September 6, 2025, the Ghost Festival, a very hard-working colleague Zhao Hanfeng died suddenly. At that time, he and I were working overtime, and without any warning, he just said he would take a nap and fell asleep. When I went to call him, he had already passed away. Not long ago, he just celebrated his 40th birthday. While sorting out his office supplies, I saw a letter he left for me and a USB flash drive.