On a bloody battlefield, the master swordsman Rix finally gives in to his deep-seated dislike for warfare. Seeking a complete escape from his violent past, he fakes his own death to go into retirement and starts a new life by enrolling in a prestigious magic school. There is one significant obstacle: his magical aptitude is zero. Despite this, he is determined to work hard, especially alongside a scholarship student named Shino, whose cold attitude does nothing to discourage him. Rix soon discovers that his legendary skill with a blade is more than a match for his peers magic. He inadvertently overpowers and smashes through all common practices at the academy, his unconventional methods catching the eye of the Imperial princess, Serephina. She tries to recruit him back into the army, but Rix refuses. He does not want to be the strongest soldier; all he wants is to live a peaceful and enjoyable life as a wizard.

The setting shifts from grim battlefields to the halls of a fantasy magic academy where Rix must navigate student life while hiding his true identity as a legendary warrior. The central narrative arc follows his struggle to achieve a quiet life despite his growing reputation. His actions create a major point of conflict with the Imperial princess, who represents the world he left behind and seeks to pull him back into service. Meanwhile, his relationship with the icy Shino develops as they work together, her demeanor potentially hiding deeper layers as she witnesses his unique approach to magic.