[ her frown deepens at that remark and for a long moment, lumine says nothing, the only sound filling in the silence between them the scratching and clacking of usb devices being rummaged through and the movie that's still playing in the background.

"sibling rivalry", he says. and yet, despite the arguments and disagreements she's had with aether, she doesn't think it's ever come to murdering each other. but she supposes that everyone has their own circumstances—and a part of her wonders if the events in teyvat would've concluded into such an outcome between her and her twin brother.

... maybe it's for the best that she's been brought here. ]

I do have a sibling, [ she finally answers, her voice quiet. ] A twin brother, even.

[ a beat: ] I don't think our sibling rivalry has ever come to that, though ...