The wall with a limit of 500 words, known as the time machine, is always filled with various graffiti.
These words and illustrations, with the unique sentimentality of youth and the unique childishness and frivolity of that age, are refreshed every year and filled again and again by young and frivolous people.
It is a bamboo slip that records our youth. It has been tampered with and rewritten again and again. But those things hidden deep in everyone's memory are often turned up and wiped, and even the mottled time and the dirt of the years cannot cover them up.
Just like the small words written in the corner that have never been erased, many years later, people can still remember them with a smile.