$USDC

Old Wang found an old-fashioned USB drive at a second-hand market. When he plugged it into his computer, a folder named "2008" popped up. Inside were photos of strangers: young people in bell-bottoms crowding in an internet café taking selfies, a blurry wedding scene, and a photo of a baby celebrating its first month, with a banner in the background saying "Earthquake Relief." He casually posted the photos on a local forum, not expecting that three hours later someone would recognize his long-lost cousin—the young man in the photo holding a flip phone and grinning.

The next day, the entire forum exploded with activity. Some found long-lost family portraits from when they moved, while others pointed to KTV photos exclaiming, "That's my dad when he was young!" Until a user with the ID "Teacher Zhang from Chunfeng Primary School" left a comment: "The girl in the red dress, seventh from the left in the third row, is the only student from our class who was never found after the Wenchuan earthquake in 2008..."

Old Wang held the hot USB drive, watching the private message notifications pop up endlessly, and suddenly noticed an unnamed text file in the corner. When he opened it, there was only one line of text: "Help them remember."