Why is Erin NOT really annoying while other series with similar characters are

Pretty much the title, I've been reading and catching up on Other series while letting the volume 10 chapters pile up for later and I've found that characters like Erin who don't really respect Authority and like to break the rules seem to be either annoying to read or just make me heavy sigh alot. But for Erin it works for me and tbh it's make her one of my favorite characters in the series