The Flow of Gods and Demons: the Law of Mandala

I was just working a part-time job at a convenience store while I was studying abroad, but a customer forced me into a suitcase and asked him to keep it for me, saying that someone would come and pick it up. Finally, someone did come to pick it up the next day. It turned out that the person was an acquaintance of his, and he was dragged to a strange place to help without any explanation. Just help. Who knew a monster would come out and try to steal something... Wait a minute, monster? Monsters appearing in modern cities? In the Far East, the story of the intersection of gods, demons and humans across thousands of years of history begins.