Xiao Tieyi, the General Who Guards the North, has spent half his life fighting in battles, only to be framed by treacherous ministers, unjustly stripped of his position, and plunged into the depths of despair. Just as his life reaches its lowest point, his daughter Tangtang is born. Her first cry awakens hope and warmth in the family. Determined to protect his wife and daughter, Xiao Tieyi regains his faith and takes up his cause once more. With loyalty and courage as his blade and fatherly love as his shield, he gradually clears his name, repels foreign enemies, and safeguards the border. The arrival of little lucky star Tangtang brings light back to the General's Mansion and restores peace to the country.