I will come with the rain. Kim Yu.

They say that in Seoul, strange things are happening on the waning moon... Especially in a thunderstorm.

A modest student with Minna is working as a waitress in the snack “Blue Dragon”. Once on a rainy day, her measured life violates a handsome, but very intractable guest on whom she sheds hot coffee.

If she knew that the meeting with the dragon brings not only luck... first found near the diner tickets To meet one of the popular idols. Then the sudden disappearance of his fans, as well as the strange policeman investigating the case, who hates the lunar eclipses.

All events lead Minn to the two riddles of her past: where the father disappeared, and why the ex -guy threw her before graduation in secondary school ? And what if one day she has to choose between feelings for a beautiful dragon and her own life?