In Steady Don't Wave, Sun Coco is nicknamed Sun Fatty, a nickname taken by Lee Grasshopper. So Steady Don't Wave Zero is not Sun Coco.
"Steady Don't Wave" is a novel written by Dancing, a platinum writer at Starting Point Chinese Network, which focuses on the story of Chen Nuo, who was reborn from the year 2021 back to the year 2000, and was spiritually transformed into Chen Nuo, a high school student of the same name, and the story unfolds.