Uchi No Otouto Maji De Dekain Dakedo Mi Ni Kona Upd ((install)) Online

Thus, the phrase is likely , not official media.

So the literal translation:

And so she utters this incomplete sentence, trailing off into an ellipsis or an upd—an update, a plea, a marker of time passing. She is still waiting for the giant to come home. uchi no otouto maji de dekain dakedo mi ni kona upd