The detective is already dead, vol. 1 (Little, Brown Book Group)

When the story begins without its hero​Kimihiko Kimizuka has always been a magnet for trouble and intrigue. For as long as he can remember, he’s been stumbling across murder scenes or receiving mysterious attache cases to transport.

When he met Siesta, a brilliant detective fighting a secret war against an organization of pseudohumans, he couldn’t resist the call to become her assistant and join her on an epic journey across the world.

…Until a year ago, that is. Now he’s returned to a life that is normal and tepid żeby comparison, knowing the adventure must be over. After all, the detective is already dead.