Every civilization has its myths. Only one is true. When eighteen year old Keiko Yamada's father dies unexpectedly, he leaves behind a one way ticket to Japan, an unintelligible death poem about powerful Japanese spirits and their gigantic, beast-like Guardians, and the cryptic words: "Go to Japan in my place. Find the Gate. My camera will show you the way." Alone and afraid, Keiko travels to Tokyo, determined to fulfil her father's dying wish.