Hiyoko is a shy and naive 24-year-old girl who finally debuted her handmade plushies at a crafts convention. At the big event, she sold one of her chicks to a tall and handsome man from Northern Europe named Nicolas. Not only was he good-looking, but he seemed to love adorable things! The two become friendly, and before she knew it, she unwittingly sparked Nicolas's desire! He seemed like a cutie, but suddenly, he changed into a beast?!