I'm the Northern Marshal

As a son-in-law to the Zhou family, Zhou Qihua was once the Prince of Langya from the Great Feng Dynasty. After repeatedly defeating the Northern Manchu forces and earning the title of Northern Marshal, he became legendary across the realm. Upon joining the Zhou family, he restrained his power and endured three years of hardship following his father's orders. When the Prince of Langya finally announced his return, Zhou Qihua reclaimed everything he had lost in one decisive move.