Kusanagi, Yui

草薙結衣

She is a high school student and a member of her school's kendo club, and she also practices the traditional martial art of Iaido. She comes from a family of Shinto priests and priestesses who have lived in and managed the town's local shrine for generations. As the main heroine, she was drafted by Zeus to teach warring mythological gods the value of being human and to help them graduate from the Forbidden Academy; if she fails, she will live there for eternity.
Each mythological god has their own nickname for her. Two of these are "Fairy," a moniker given to her by Apollo due to his attraction to her, and "weed," a derogatory remark that Takeru often uses because he is annoyed by her presence.