Taking "looking for a coffin" as the main line, it runs through the ancient curse of "nine reincarnations". Legend has it that the ancient Anunnaki (a race of gods in Sumerian mythology) used nine "star marrow coffins" to suppress the nine divided souls in order to seal the "Evil Spirit of Styx" that devoured civilization. For thousands of years, various civilizations (ancient Egypt, ancient Shu, Japanese Jomon, Southeast Asian heads-downs, and European Black Masses) have left "coffin traces" clues, and the protagonist team will uncover in the global adventure: the so-called "seal" is actually "feeding" - evil spirits are gradually reviving through the blood sacrifices of believers...
