I'm an Enemy of Urban Legends in Tokyo

Facing the 800 million gods and ghosts in Japan,
Kamijou Taiichi unfolded "The Classic of Mountains and Seas",
release the willow,
"Sorry, everyone here is trash!"
PS: This is a story that happened in a parallel world with high similarity
PS2: The name is just to make it easier to be discovered. In fact, the story is about the mountain and sea elves fighting the heavens.