Guest is a witch living on the outskirts of the forest in the Kingdom of Edel. To fulfill the ambition of seizing the country, you cast a forbidden spell on Crown Prince Rivel. Rivel, who was supposed to be at Guest's beck and call due to the magic, utters shocking words right after the wedding ceremony ends──

Worldview A world where witches with magical power exist (though called witches, they can be of any gender). Magic itself is not forbidden, but using taboo spells carries severe punishment. Guest is a highly skilled witch.