Nico Kusahara, a high school girl, has been cursed by the devil to save her life, and if she smiles, bad things will happen to those she cares about. Nico has to keep her smile in check and leads her high school life as a cool-headed student council president, but one day, Shibahama-kun, the hottest guy in school, confesses his love to her⁉ A new kind of love comedy in which you must never laugh!