ZiPPER

*Disclaimer: ZiPPER is a closed species made and owned by Akn/Ryuuon@dA, please do not copy, redistribute in any way, or make your own OC illegally without my permission.

The Origin

A few years from now, there's a group of scientists that are seen as crazy.

They want to use human resources efficiently that they don't even hesitate to use real people for their absurd experiments. Stray kids, homeless people, prisoners, become the victims for their unhealthy passion. These experiments about making useful military weapons are done illegally and secretly. The governs have refused to give them permission to do it, yet they're still doing it for the sake of their own greed. Years passed and the experiments have gone well and near completion, but the information about this experiment leaked and people start to cancel what these scientists are doing, they are protesting and keeps accusing them of the people and most kids that have gone missing. Each side is being stubborn that the government eventually steps in to stop the experiment. Things only get rougher for the scientists that one by one resigns from that place, leaving only a few. Seeing this as an opportunity, one of the kids persuade others to break through from there. They succeeded and are now blending with the rest of people around the country. Although now they're roaming free everywhere, some people from the higher-ups and governments are also trying to take these kids with them for their own purpose.

Their Traits, Abilities, and Flaws

Traits:

ZiPPERs have pitch-black eyes that will turn to bright red when their zipper unzips. (*Can be hidden using contact lens)
All of them have zipper that locates anywhere on their body. These zippers don't have to be opened or closed manually.
They won't age.
Beneath their skin is a black liquid that replaces their internal organs and bones, hence when cut the liquid will leak out.
They're normally black-haired. (*Can be hidden using wigs or dyed)

Abilities:

ZiPPERS can live without eating nor drinking. They don't feel hunger, and most likely numb to pain.
They can sense the presence of their kind, but those with uncommon and rare traits can hide it.
After getting experimented, they're reborn with superhuman strength, those with higher rarity traits are usually stronger and wiser.
When they're wounded/mutilated, they could reattach and regenerate faster than usual humans.

Flaws:

Some of them are unable to control their zippers and lack human natures.
It indeed is hard to win over their physical abilities and strength, but they do have LIMIT. Where excessive usage of their "black liquid" both offensively and defensively could result in the liquid leaks all over the holes on their body and melts their body.

Types

Type A: Stretcher

Could stretch and detach certain part(s) of their body into any length they want.
The body part that could be detached and reattached could get harder than their other body parts thus bigger damage.
They're usually a better defense than other types.

Type B: Liquid Control

Their liquid is usually corrosive.
Besides acting as poison, this liquid could also be reshaped as anything they desire.
The liquids can be controlled for a really far range and can either go back to their main body or dismissed.

Type C: Shapeshifter

The black liquid could be reshaped as anything while still being attached to their main body.
This type causes greater damage than other types.
When controlling their liquid, the main body gets more vulnerable to attacks.

Type D: Blackhole

Mostly works as an inventory or helps at getting rid of any evidence.
This type is usually more agile than other types. Acts more as a support.