I'm an Enemy of Urban Legends in Tokyo

Facing the 8 million gods and ghosts of 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.