Massan is a biographical drama series based on the lives of Masataka Taketsuru, the father of Japanese whisky, and his Scottish wife, Rita. Set in the early 20th century, the story follows Masaharu Kameyama, a young Japanese man who travels to Scotland to learn the art of whisky distillation. There, he falls in love with and marries Ellie, a spirited Scottish woman, and brings her back to Japan to fulfill his lifelong dream of establishing a domestic whisky industry. Upon returning to Japan, the couple faces immense cultural barriers, societal prejudice, and the harsh economic realities of the pre-war era. As they struggle to build a distillery in the rugged terrain of Hokkaido, they must navigate the skepticism of Masaharu's traditional family and the challenges of adapting to a country that is not yet ready for their vision. The series is a poignant exploration of love, cultural integration, and the relentless pursuit of perfection against all odds.