I don't think the story was mentioned here yet. The translated story details so far are... different from the other games. It seems Zelda gets kidnapped this time around because this jealous villainess has the hots for Link. being Triforce keeper, Shia noticed Link (who was a part of Triforce obviously), developed feelings for him and evil used it.
They warped her vision, actions and feelings. And she try to destroy world and hoping, that Link-senpai will notice her. Also, jealosy of Zelda, who keeping Link close to her (being childhood friend and all that).
So Shia went full yandere here. And all thanks to evil forces, who corrupted pure soul. And made her wearing these clothes.
Honestly? It's not bad. It's not like Shia want to destroy world just because.
