An ancient and passionate novel that combines the elements of time travel, soldier king, cute baby and academic master. Jiang Yan, the top modern soldier, once traveled to the turbulent ancient battlefield, but was accidentally bound to a "student master system" that seemed to have "the wrong text", and shouldered the heavy responsibility of raising the mysterious cute baby A-nan.
Faced with the dangerous border, the eyeing enemy troops, and the turbulent situation above the court, Jiang Yan did not choose to confront the enemy head-on, but found another way - he combined modern military theory, mathematical logic with ancient military tactics, and used precise mathematical calculations to plan supplies and deduce the battle situation. His professor's cute baby girl, A'nan, is even more gifted. She has already studied "Nine Chapters of Arithmetic" at the age of five and used Arabic numerals to solve ancient problems, becoming the most incredible "little strategist" around him.
