In 4033, mankind experienced many setbacks and conflicts, and finally ushered in an era of peace. Countries cooperated in a project called "The Clock of Time", which aimed to retrace the origins and organize the development of mankind in various fields over the past thousands of years. People who participated in this project were called explorers. In the corner of a small town on Earth, old and shabby wooden doors were sparsely hung on the wall. When the explorers touched it lightly, the wooden door fell to the ground, as if it was stuck in its original position at a just right angle.
Concept: The future world will be colorful
