Fantasy Mathematical Wars is a cartoon published by China City Press in July 2009-1, translated by Li Xuequan. This series is the most popular comic book for fun math learning in Korea, and it is also the first school-age children's book in the world that skillfully combines math knowledge with comics. Since its first publication in 2004, this series has achieved great success in Korea. In just six years, it has been published to 19, and each book ranks 1 in the best-selling list of Korean children's books. This series was drawn by the famous Korean children's dream building team "Picture Tree", and was called "an interesting and useful practical education book" by the most authoritative elementary mathematics education research association in Korea. It is fully recommended to be popularized in Korean primary schools. Fantasy math war series is completely different from the simple spoon-feeding method, but uses thrilling storylines to stimulate children's interest in mathematics and enjoy the fun of learning mathematics. Starting from the story of young hero Zhixiu leading brave elves and clever humans to save the mathematical world, this series introduces the origin of numerical values step by step, involving natural numbers, fractions, four operations and other concepts, step by step, easy to understand, so that young readers can swim in the mathematical ocean. Open the fantasy mathematical war series, and the self-taught mathematical principles will meet the readers through the fantasy war!