IS YUKI A SMALL FRY OR A CHICKEN WING
{PROUD TO BE THE VILLAINESS: I'M DOOMED AFTER STEALING MY HALF-SISTER'S FIANCE AND HAVING HER BANISHED This sh*t is different it's AIZEN LVL SH*T
You know it's a lost cause though? It'd be like wanting Yamcha to become a good villain in dbz at this point. Like out of nowhere, you retcon most of your story to revolve around a previously introduced and developped character to portray it in a totally different and unfit way. (starting with his very character design) But it's only the tip of the iceberg, because this 'little' change have tons of cascading ramifications in the whole story. Plot twists of this scale require so much work and preparation, ain't no way the author of tensura can pull that off let's be real. This ain't death note or code geass.
No matter how author tries to twist it, it can only feel dumb. Well, the premise of Yuuki's character in this world setting feels dumb to begin with, but hey. Don't ask question, enjoy product.