There was once a time-traveler who wanted to be a copywriter, but he didn't want to copy the song that someone had already copied...
There was once a guy who wanted to make some kind of electric light, but in the end he was killed by a catastrophe caused by himself - the thunder in the world of immortality can only be used to overcome tribulations, right?
There was another person who wanted to make gunpowder, and this was successful, but that thing was basically useless to a foundation-building monk—when that monk invented gunpowder, he was already at the golden elixir stage.
In order to maintain the harmony and beauty of this world, Yun Mengze took up the important task of fighting against the time travelers without hesitation!
Purpose: Don't insult people for no reason