Legends, customs, the Seven Mysteries... In this world, there are phenomena that science cannot explain. They are called ghosts, or strange phenomena, and sometimes they remain as folklore. Most of them are due to misunderstandings or preconceptions, and when you look into them, they can be explained by trivial reasons. But still. Very rarely, the "real thing" exists. Things that were secretly alive. Things artificially created. Things that were "born" by some chance. Chasing all the mysteries scattered across the world, one man travels from place to place even today.*