負け戦4

Anderna, a small northern country.
Though lacking in national power, this country has been managed to keep its independence against surrounding powerful countries and the demon army thanks to a presence of one soldier. Surnamed Katherine the Great Shield, this woman has retired when the great war ended and was enjoying her life with her beloved husband and two sons. However, the peace broke suddenly; General Aitor, another contributor to the termination of the great war, attempted a rebellion against the royal family with the help from the demon army. Having learnt the news, she picked up her old ax once again and stepped into the royal castle occupied by monsters...