>>535566906
>Gregor does mention his sister
Once, dismissively, and in past tense.
>This isn't a fair comparison ... he doesn't have a real canto.
He doesn't have a real intervallo either, which was a huge help to the other of the mentioned 2 characters I assume you're talking about.
For Grete to suddenly appear out of nowhere now and be super important to Gregor after not having spared her a single thought in 9 cantos is just tragically poor writing.