Deaimon

In a wagashi shop in Kyoto, the series is set. The main character, Nagomu Irino, is an only child who fled his home 10 years ago to live in Tokyo in order to pursue his ambition of joining a band. He gives up on his ambition and goes back home after receiving a letter from his family informing him that his father is in the hospital and requesting him to take over the family business. However, Itsuka Yukihira, a ten-year-old girl, has begun working in the store while he's been away. Itsuka's foster mother, Nagomu's mother, who raised Itsuka while Nagomu pursued his ambition of joining a band, says that Itsuka and Nagomu will compete to inherit the family business.