She is one of Amakusa's servants from his rebellion at Shimabara. When he succumbed to Ambrosia's will, she was also subjected to the dark god's influence and cursed with black wings. With her older sister lost, Tokihime faithfully remains by Amakusa's side. Ushiwakahime asks her to block the party's path to Amakusa's castle and effectively creates a barrier to prevent their advances.