Asai Sachi's luck has always been considered dreadful. After becoming the class president, she meets Kurono Hyougo, a guy with a frightful face who bears various gruesome rumours behind his back. Hyougo had been living alone in an apartment; but when Sachi mistakenly reveals that Hyougo is a minor, he had to be kicked out. Fortunately, Sachi's father is a realtor, and suggested to have Hyougo live in their unused detached house. Would Sachi's bad luck turn upside down upon meeting Hyougo?