[ Other things. Other things besides being with his sister. Childe tries to imagine it, circumstances where he wouldn't want to see his siblings, where he would want to keep distance between himself and his family, but he just...can't. Maybe if it were to keep them safe, but he himself is the most capable of keeping them safe. If Aether is anything like his sister, then he should have no trouble keeping the both of them safe, even if Lumine hardly needs protecting.

Her brother would know that.

He has to swallow it down, that simmering anger that someone she cares about so much would treat her like that, that family would treat her like that. He doesn't want to upset her further, even if the way she blinks her eyes has his chest tightening with a fiercely protective instinct. People don't hurt his comrades and get away with it. ]

If he has any idea how much you care about him, then I'm sure he will.

[ He'd be an utter fool otherwise, and will have the ire of one of the Harbingers to deal with as well. ]

But he's not your only family now, is he? You have Paimon, and all the people you've met during your travels. People whose lives wouldn't be the same without you in it. That won't change the fact that you miss him, but you're not alone, comrade.