I need some help with a new character

I recently scrapped one of the main characters in a story I'm working on because she didn't really fit, and I'm in the process of completely remaking another character in her place. All I have so far is:

• She's Chinese
• Parents met in Ireland (hence the name below)
• Her first name is Nemain
• Very dark eyes
• Lies easily
• Sharp cheekbones
• Looks sort of badass?
• Black and grey aesthetic
• 100th reincarnation/rebirth of an Irish crow goddess
• weak powers, when fuelled by incredibly tense emotional turmoil and rage, she can kill everyone in a (blank) radius with a magically charged scream

I haven't decided whether to make her more stoic and closed up, or an emotional mess deemed a failure by her parents who drinks and parties in a futile attempt to get rid of her constant numbness.

The other two main characters are more the first type.

Any ideas?

What you have so far is good enough… Also, what ideas are you looking for help with?
Maybe make this character more of the first type because Asians are more likely to turn up that way (no racism intended I'm an asian myself.)
And you decide to go with this, make one of the other two characters like the second type… so you'll have a sub-plot of how these characters will begin to open up and trust one-another.

If you don't go with this, seeing as a non-stereotype point of view… you can make her encounters with the other two characters salty because (in a way they resemble what's expected of her… to appear less of a mess), also giving you the sub-plot mentioned earlier.

Unfortunately, I've already developed the other two characters to the point where there's not much more to develop, I know them better than I know myself, so there's no changing any of them now.

that makes sense, thanks

She's just in her very early stages right now, so literally any idea about anything at all would be great

No problem. Also, here are some thought-provoking questions that might help…

What other powers does she have? And how are you you intending to use them for the main plot?
What is her take on the world? Does she just live in a bubble… far from all the sorrows, not wanting to come out?

Here are some I found online

Maybe this will help giving your character a direction

She can speak with ghosts in her dreams and attracts crows (though that’s not really a power). She’s supposed to fill the space of the third ‘goddess’ in the trio. She’s sort of given up on everything and just doesn’t care what she does or what happens anymore

And thanks! I’ll take a look

Welcome, again. Also, the image might be a bit blurry but I couldn't find another way of sharing it.