"Addicted to Curry" is the story of Sonezaki Yui, a schoolgirl, whose father is the owner of Curry House Cooking Ganesha. One day, Yui encounters what seems to be a starving man in the middle of the road. Not knowing what to do, she decides to give him some food, but instead she trips and hits him in the face with a soda can and she runs away in embarrassment. The young man, Koenji Makito, follows her curry scent back to the restaurant.
At first, Yui thinks that Koenji is going to kill her for throwing food at him, but it turns out that he's a nice guy who knew and was looking for Yui's father, Souichirou. Yui tells Makito that the restaurant is going out of business and that her father Souichiro has left on a journey with the goal of improving his cooking abilities, pretty much leaving her alone with the restaurant. Koenji who is in debt to both Yui and her father decides to team up with Yui in order to save the restaurant.