Hanato Kobato is on a mission: she has a wish she wants granted. To achieve this, she must mend the wounded hearts of the people she meets on her journey and fill a magical bottle with the suffering she has relieved. The only catch? She cannot fall in love with those she helps. That seems to be the least of her problems; she has no clue how to mend hearts, especially as each person's heart is different. Looks like the road to getting her one wish will be a long and hard one. But what is it that she wants?