-FICTIONAL WORK- Government uses an extreme way to challenge their divers. The remote controlled semi-human cyborgs called The Guardians are patrolling around the seas of the Kron World. There are so many different types of Guardians. The most essential type of the Guardians are the Dark Guardians. Dark Guardians’ only job is to find and exterminate the divers. A rumor tells that they do more things to the targets they drown… but the reason government allows them to do this is currently unknown. Some say they are tying to get the divers’ adrenaline level to rise for making they more active on the field. Divers that seen a Dark Guardian has a really low chance to survive…