This is exactly the same Cassandra Elena from Champions Online; E.G. Cassandra Elena The First. However she is here pure and only to see her friends who've given her stay for the time being.

Here is the basic insight on this character:
Full Name: Kozue 'Cassandra Elena' Nankikaksuki

*I should mention that this name is purely one that is easier for people to say.

Date of Birth: November 12th, 2263

Age: Physically 31, Actually 53 as of the time period for Stormrise which is currently in the year 2349(Over time, she had suffered through some kind of time and/or ?Age Flux? -- Age Manipulation that caused her to retain the same age she was originally before and after she got here to the Prime Earth). She is originally from Stormrise; An Earth Utopia where metahumans (specifically Mentalists) and normal humans live together peacefully.

Appearance Age: 31.

Age: 54+ (Read the above to get an understanding on that)

Cup Size: 48 DD Cup

Actual Height: 5'2"

Body Type: Endomorph -- Cassandra basically worked out her body down to the point of improving all portions of her legs. Even though a endomorphs's muscles are not so well defined and their metabolism is slow, it allowed Cassandra to obtain thicker thighs, calves and overall a bigger booty as she calls it. Obviously she went to put on a significant effort (more over a year and a half)
your lower body. From the fat which was gained from eating so much and  
train cardio as well as weights. Due to a slow metabolism, but a ectomorph?s body lacks curves, while the endomorph?s body is all about them. So entirely capable of swagging out a good bikini and even naked too. Comments about this ICly are fine. ^^

Nationality: Japanese(1/4th);American. Citizen of Stormrise. As explained through DNA and records Stormrise does not go by separate ethnicity anymore instead merged all the races into one called 'Stormrise-an' of sorts. Keep in mind all the languages, races, and cultures stayed but the countries did not. It's no longer divided by country anymore. They are defined by ONE PEOPLE instead by one country or another.

TL;DR - Why is a non-Fantasy character like Cassandra Elena doing in Sinfar:
Well at some point on Champions Online-Earth, Cassandra ran across  Charlotte S'abrina S'erminutue. Who was visiting between worlds. They talked significantly enough to Cassandra thought she stood out and so on and so forth. She learn somethings about S'abrina -- being a witch, having power, children but she wanted to know more.

The time that had passed was about 3-4 years give or take, Cassandra didn't see S'abrina since then. Until she got a letter to come see her in SinFar and as of right now, S'abrina was able to offer travel just so the two could catch up. Considering that she isn't on 'Earth' and has friends here instead and it makes sense for S'abrina to be in Sinfar not on Earth. (She invited Cassandra and XStorm said it was fine so no need to call the character a troll-- also I didn't mean to be rude this was stuff that was done prior to the people who were also RPing in the game at the time -- so only he and I know about this. I'm still working on this with Xstorm so you can just either ignore this character complete if you want to. Though as a future reference I'll refrain from those form of comments about cellphones, etc Again sorry)