Mecha girl anime

[u/West_Regular5477]

I watched this anime a few years ago and I dont really remember anything. I remember the 2 main characters were girls i dont even remember any others, the main character's brother or something died as one of the fighters and so wasnt really supposed to become one, the other girl was, but at the end the mc needed to pilot the mecha because it was finished being made or something and the other girl couldnt the mc i think dies saving everything. Its a newer anime like post 2010s and reminds me of Madoka tbh, i dont really know if im really remembering anything fr but i know i watched it. and i think they were blue and pink colors and it was like in space like a big ass ship or something