Hinata An'na was granted power by a god who was moved by her bravery and kindness when monsters once threatened the city, entrusting her with the duty of protecting peace. This power is contained within a special magical candy called Magical Drop, which allows her to transform into Silphied—a warrior who maintains the graceful appearance of a princess. Upon learning of her existence, the evil organization "Z-Dan" launches an attack on An'na in an attempt to seize the Magical Drop. The story unfolds as she struggles to utilize her powers effectively and fight to preserve peace.