Summary - In the year 2272, humanity were pushed into a large island called Tecumboia Haven by a unknown phenomenon called the Deacsacs. They are strange monsters that came out of a strange dimension that seeks the destruction of humanity, thus they could not be reasoned with, and they're invisible to the human eye due to the fact they're made of quantum.

So, to combat this, research institute created a serum of Deacsacs blood that would allow humans to see the Deacsacs, and to combat them, but only a small population of humanity could withstand the injection, so the government created a special police force called the "Deacsacs Assault Squad" or DAS for short to handle the Deacsacs.

Twenty years later in year 2292, a normal young policewoman named Joanna-Lareina Yoshida Cortez, or just Joanna Cortez, were involved in investigating with a car incident that left platform completely destroyed, but for some reason, she can see the Deacsacs attacking the area without the serum.

But was unfortunate enough to get attacked by the Quantum corrupted people until one of her childhood friend, Ravio Alver, came in to save her and gives her the serum that would allow her to fight against the Deacsacs as normal attacks doesn't do anything.

This incident would have her move into the DAS and meet commander Hirotada Wakita, who was the one who authorised the serum to her and recruited her into the front lines like Ravio, along with her father who is actually the captain of the squad, and another of her childhood best friend, Lindelwa Pukwana. In fact, a lot of people she knew works for DAS either as a doctor, a operator or a police like her.

But her powers are drastically different then everyone else; the unique ability of copying certain Deacsas' DNAs into weapons, unlike everyone else who are stuck with only one type of weapons.

With her unique and new powers, she uses it to help uphold justice and the law as a new member of CAS, but is the law TRULY just?

A/N - Inspired by Tokyo Ghoul, Astral chains, Honkai Impact 3rd and Madoka Magica. Very unusual combinations, but I will try to make it as much as I could.

If you're confused by Joanna's powers, think of it like Megaman's ability to copy other robots.

Anyways, I hope you guys like this idea and if you did, leave a comment and have a safe day. Aqua out!