Deaimon: Recipe for Happiness

Nagomu is a man who left his home in Kyoto and his family's confectionary shop when he became a musician. Upon hearing that his father has been hospitalized though, he comes back home to take over the family business. However, while he was gone, a young girl named Itsuka started working at the shop. The whereabouts of Itsuka's parents is unknown, and she has no other relatives, and Nagomu finds himself as foster parent for Itsuka. Itsuka, on the other hand, dislikes Nagomu for abandoning the family to become a musician. She proclaims that it will be her who will take over the shop one day instead of Nagomu.

Synopsis from Anime News Network