While still in high school, Kim Dok-cha started reading a web novel about the end of the world and a hero who is destined to restore the world to its original state. On the day his favorite story ended, he was the only one to finish it, and he wrote a letter to the author expressing his disappointment with the ending. When he received a response offering to rewrite the ending, the end of the world suddenly occurred, and Kim Dok-cha was the only one who knew what to do.