Hanato Kobato, a sweet and innocent girl, lands on Earth with a mission to gather 'konpeito' - magical candies that manifest after healing someone's broken heart. Her ultimate goal is to fill a bottle with these candies, which will grant her wish to reach a special place. Despite her peculiar nature, Kobato proves to be skilled in her mission as her genuine desire to aid others earns her the love and respect of all those around her. Nevertheless, the rules dictate that she cannot fall in love with the people whose hearts she has healed.