追放された実子、チート料理で下剋上

Cain, the true-born son of House Lann, is framed by the scheming adopted heir and cast out to die. Saved by a food-truck system, his modern dishes beat his rival in a royal contest and win the king's favor. When his family tries to swallow his business, he publicly disowns them, exposes the arsonist, and opens his own restaurant—finally home.