Countess Amelia, mistreated by her family and disliked by her fiancé Cedric, who finds her dull and uninteresting. Amelia leads a daily life supported by her beloved work as an apothecary. One day, she is visited by none other than Cedric, who has been poisoned and transformed into a squirrel!? "Please let me stay in this room," pleads the nagging, fluffy fiancé (now a squirrel), and thus begins their strange cohabitation――!