"That girl is... kinda creepy i mean, yeah she is cute and gentle... but belive it or not she is an assasin a toxicologist expert of poisons... they say she make a small bottle of poison for anyone she knows... just in case"
- Gaia Pacho

Greta Arsen is the greatest expert of poisons, toxical gasses, and chemicals of KHI if you give her enought time she can come up with something to kill almost anything she is a bit misterious but she isn't so bad... she is polite and refined but not friendly as most pepole thinks... she prefer to have few real friends.
due to ther job she have the mania to wear gloves... at first as a necessity but then after that she have been updated she no more need them... but she keep putting them on but mainly for aestetics, her update infact make her immunte to poison and intoxications and her resistance to corrosive, urticant and tear gasses

due to the fact that sometimes she use personally her posions she prepared a kit with all she need to accomplish her mission:
1- surgical syringe, her touch is extreemly delicated, that mixed with tiny needles make her injections imperceptible, even if you are sleeping you will not wake up
2- Food poisons, there poisons are perfect to be mixed with drinks or meals to put the poison on the food she use a modified ring
3- poison Dagger, she use that when delicated manners can't be used... a cut or a stab from this inject high lethality poisons
4- chem dispense, a little grenade like dispenser for lethal or non-lethal gasses or chemiclas
5- Dart gun, this is the weapon she use when things get bad the dart gun use the most powerful poisons she know and her accuracy at mid ranges is "olimpionic"