I've confirmed the twin's chest size was more pronounced in the anime than the manga. The manga feels more correct considering they basically are the same person.
@hi-im-kirby Manga and anime are adapting from the LN which is the original source. It's possible that anime can overtake manga since it wasn't based on that in the first place.
People who are complaining about "2 months for this" and "manga is behind anime", the author or artist (I don't remember which) only recently recovered from some kind of illness which is why it took 2 months.