Not trying to say STAYC copied Twice, I just like finding similarities between my favorite girl groups.
STAYC's 'teen fresh' concept looks like a mix of Twice's past and current concepts. Both have the sweet, ultra-feminine, girls next door image as well. Twice have been known for their great personalities since they blew up, and BEP made specifically sure the members of their girl group had enjoyable personalities and clean pasts. STAYC have reminded me of Twice since I've started stanning them, and it's probably a reason as to why I like them so much. They have this sweet girly vibe that drew me to Twice as well.