Nagomu Irino returns to his Kyoto home for the first time in ten years when his father is hospitalized. Nagomu is eager to take over Ryokushou, the family's Japanese sweet shop, but he's instead asked to be a father figure to Itsuka Yukihira, the girl everyone calls the successor.
Hanaori Amemiya works as a corporate employee and is a popular influencer. She knows everything about the confectionery stores in the city. By chance, Amemiya happens to be in charge of a chocolate boutique. The story begins to unravel the history and culture of chocolate in Kanazawa. A special project for the 70th anniversary of MRO.