After experiencing his father's gambling and his mother's suicide, Lu Shengcheng ushered in his own gray world. When he entered high school, he met the cheerful and generous Little Sun Lin Zhen. He smiled and stretched out his hand to pull Lu Shengcheng up when he was defeated again and again, painting his gray world with color again and again. Lu Shengcheng also had his own little sun after this.
Concept: Everyone's world will always be a little gray, but there will always be people who come to your world to color it.