Inept with a sword, unable to ride a horse, and apathetic toward the empire he serves, Regis Aurick is a hopeless soldier who spends his days buried in books. Banished to the borderlands, he encounters a stirring young woman with red hair and ruby eyes. She is Fourth Princess Marie Quatre Argentina de Belgaria, known simply to Regis as Altina. “…Do you want to become my tactician or not?” Having sought him for his rumored strategic prowess, she aspires to reform an empire led by self-seeking nobles and driven to pointless wars, the legendary blade of an emperor, the Grand Tonnerre Quatre, at her hip. Continuously underestimated by her regiment, including her would-be tactician, the princess resolves to prove her worth beyond a shadow of a doubt—no matter the risk. Here is a tale of war, love, and politics, woven by the bookworm and the sword princess. (Source: J-Novel Club)

Regis, an incapable soldier, who is bad at both sword and archery that only reads books. He meets a girl in the remote region where he was transferred to. Red hair crimson eyes princess Altina wields the supreme ruler's sword. She was appointed to become the commander of the army of the remote region despite being fourteen years old, simply for being the illegitimate child of the Emperor. However, she is holding onto her big dream without being depressed in the environment she is in.
Regis who was sought from her as a tactician stands up to the obstacles together with her. The military fantasy interweaved by the bibliophage boy and the princess with the supreme ruler's sword.

Fourth Princess Altina has been chased from the imperial court and assigned to command a faraway unit on the border. If she wants to one day become empress, what she needs most is wisdom. “The Eve” recounts the first time she learns about the bibliophagic tactician who goes on to become her biggest ally. A young Felicia must uphold a deception of the grandest scale, taking on a new identity to live as her late brother. Find out her fate in“Auguste, the Silver Princess.” Finally, in “A Vow to the Morning Star,” Third Prince Bastian sets off with Elize—whose right to the High Britannian throne has been stolen from her—to write a new story. Here is a set of short tales from the popular military fantasy! (Source: J-Novel Club)

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