Prushka barely interacts with Riko in any meaningful way, usually in flashbacks, but even then it's not enough for her character to develop such a deep attachment in inredibly short period. In many ways Made in Abyss tells us that their bond matters, but that's never justified in anything shown in the movie. There's no understood chemistry between Prushka and Riko, no reason to become emotionally attached to their "friendship" which was build offsreen.
Her arc feels like a lazy attempt to recreate the same feeling as Mitty’s story, but from my perspective, even though the scene itself is emotional and dramatic, it has no meaning considering Prushka's lack of screentime prior to it.
MADE IN ABYSS TABIDACHI NO YOAKE SUB ESPAÑOL MOVIE
She didn’t do anything important through the whole movie and when it tried to give her some bits of characterization with a flashback it came awkward at best. Of Prushka, although I felt very pressured to feel sorry for her. Well, last 15 minutes and certain character almost ruined my enjoyment. But Bondrewd is amazing, easily one of the best modern antagonists, Nanachi and her complicated relationships with him is highlight of the movie, visuals and music are great. Good watch with a few minor issues - pacing is too fast, Riko and Reg are still the least interesting characters in their own series, severe lack of worldbuilding in comparison with TV series, annoying fanservice. I really wish to give new Made in Abyss entry better score and until the end it was solid 8/10.