If you can guess from the title then you are honestly, correct on exactly what you're thinking right now.

Charddark HAS a sister! And it's Pishi Meshkie!

Long story short, both Charddarak and Pishi actually underwent a demonic ritual of sorts and well... that lead to them both becoming somewhat demonically corrupt.

Charddarak got the worst part of it while Pishi actually got the best, as she still has her original colours from before the corruption. Just with some nice little "features" added on. And has gotten much bigger since then too, while Charddarak basically remained the same in terms of body type but... well. Looks heavily demonic under her suit, hence why you wouldn't see her outside of it.

She is still pretty though she just, kinda looks more like a succubus that'll most definitely murder you if given the chance. Pishi looks more like the kind of Succubus that'll love you no matter what though. -w-

And well the two were separated since the ritual for years now, only just having been able to come back together again. And ho-boy is Pishi much bigger than Char remembered her being.

(Especially considering Char was originally the big sister. Due to her age and all. Pishi is younger than 'er in comparison, heheh.)

Their jobs tend to be rather different too, Char took up mercenary work while Pishi basically decided to become a model, might as well give the people who love demonic looking gals a nice big one to look at. ;3

Now that they're together again, it might just be easier now for Char to keep her cool. (Got her sister back, heheh.)