Yi Cha traveled through time, but there seemed to be something wrong with his time travel.
When he woke up in a daze, what lay before him was a magnificent world, a world where stories about gods and immortals come true, a world where everyone can live forever and become immortals.
"It's just a little problem, right?" He asked himself.
"Stop being in a daze, Yi Cha!"
What was in front of him was not a magic weapon, a Taoist temple, or those mysterious things.
It is a bronze cannon with seven companions serving it.
An enigmatic high school principal who calls himself Da Luo Xuan Xian.
As well as the great catastrophe of heaven and earth and the end of the Dharma era that he said were coming.
Concept: Fairy-tale version of Prussian history