Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
The most powerful mercenary and famous man, Aines. He had a daughter of the most powerful mercenary, Sierra, whom he had picked up and raised. Aines's sudden retirement announcement, "I retire the mercenary." Without knowing the world other than the battlefield, Sierra goes to the academy in the king's capital alone at the request of Aines. It was difficult to spend time hiding the mercenary background, but Sierra meets the aristocratic girl Aruna and develops friendships. However, the situation changed when the assassins approach Aruna, who was involved in the succession problem, and the situation changes. To protect Aruna, Sierra decides to use the strongest force that he has cultivated as a mercenary. Girls' academy battle fantasy that the most powerful mercenary girl without knowledge of the world unfolds! It starts here!