>>38896910Normally that's how it works for a manga but in her case it's a LN adaptation and she's the illustrator. Because of that character designs and changes to them in the anime need to be approved by her
At least that's how it works in like 90% of LN adaptations. The illustrator is always involved in the process because Japanese copyright laws are very favored for artists and you basically don't want to do anything without express allowance from them (this goes for authors and artists)