Board Thread:New Chapter/Episode Discussion/@comment-5916303-20161222112427/@comment-5916303-20161224201717

Most of these characters, including Kurome, developed with an average pace. She's no better than Tatsumi, Esdeath and similar individuals. They're as by the book as they get. Her drug problem isn't anything unique either. Even though the series follows an already familiar formula, the finale's predictability was because of the anime. Having less screen time does not by any means indicate a character being demoted to sidelines, nor did I ever mention this. This is because she literally was sidelined for every major event:
 * Protecting Bolic
 * The Wild Hunt scenario
 * Night Raid vs Dark Squad, etc.

"Here and there" is rather ambiguous. It lacks any clarification as to what you're referring to.

It's not the part of it being obvious that she was weakened by Chelsea, it's more or less that she's kept alive for the soul purpose of fulfilling her climactic duel against her sister.

Disabling her from the get-go, which meant having little part in future events and limited progression, is what prevented her development as a decent character.