Link, an ordinary courier, accidentally received a package that shouldn't exist - "Pandora's Box". Since then, he has been involved in a huge supernatural courier network hidden under reality. This network connects the human world and the mysterious realm, and the items transported change fate, distort reality, and even determine the survival of the world.
As the only "cross-border courier" who can travel freely between reality and the mysterious realm, Link is forced to survive in this dangerous world while uncovering the secret of his life experience. Every time he completes a "special delivery", he can obtain fragments of the ability to change reality, but every choice may trigger an unpredictable chain reaction.
When Link discovers that the ancient gods' plans for recovery lie behind the entire delivery network, and that he may be the key to preventing disaster, he must choose between power and humanity...
