When he woke up, Lin Yu, a young man from the modern world, found himself on Mount Wudang. Since he'd become a Taoist priest, he decided he might as well do the job properly. Being a Taoist was a promising career, especially in a world where martial arts existed.
But when Lin Yu broke through to the Xiantian realm at fourteen, his master was so amazed that Lin Yu was feeling pretty pleased with himself. Then they actually tried to make him emperor! Where the hell had they been all this time? He knew nothing about ruling!
And so Lin Yu completely replaced Zhu Houcong, becoming the new Taoist emperor. He'd never learned how to govern, but with a modern person's way of thinking, surely he couldn't possibly be a tyrant.
Officials: “Your Majesty, please appoint a crown prince soon.”
Zhu Houcong: “Are you all cursing me to die early? I'm a Xiantian expert. I'll live at least another two hundred years. Why would I need a son? So he can rebel against me? Get them all out of here and beat them! Anyone who brings it up again gets beaten to death.”