The protagonist of this story is a man who aspires to create the ideal Japan through his artistry with bread. Despite appearing unintelligent at first glance, he possesses exceptional knowledge and skill when it comes to baking. His proficiency in Japanese cuisine stems from his grandfather's teachings and further studies, while his warm hands, known as "solar hands," enable him to expedite the fermentation process during bread-making. The protagonist maintains a positive outlook and remains cheerful even when faced with challenges in baking competitions. His inspirations come from various sources, including other Japanese foods and stories shared by his talkative but experienced grandfather, a rice farmer. Additionally, the protagonist demonstrates an unexpected talent for mathematics, solving a complex problem written in sand within less than a minute that took Pierrot hours to solve.