Grand Marshal Finn Lame of the Aeralis Kingdom left home for five years to protect his country, during which his fiancée Luna Kain single-handedly raised their daughter, enduring countless hardships and humiliation. Upon his return, Finn discovered that his wife and daughter had been mistreated by their own relatives. After revealing his identity, he brought the wrongdoers to justice. Meanwhile, the barbarians coveted the Aeralis Kingdom's Imperial Seal. Finn set a trap to expose their conspiracy and safeguard the national treasure. In the end, the family was reunited, and peace was restored to both the family and the nation.