Hazen Heim is a newly appointed imperial military officer cursed with low birth. Because he lacks noble connections, he is denied a comfortable post and instead assigned to the worst front-line positions. There he encounters a parade of corrupt superiors: credit-stealing supervisors, power-abusing leaders, and senior officers who have never faced a real decision. Fortunately, Hazen carries the memories and expertise of his past life as a legendary mage. Armed with decades of arcane knowledge, he sets out to dismantle the incompetence and tyranny of the aristocrats above him, using whatever underhanded tactics are necessary. The series follows his relentless campaign to climb the imperial ranks by crushing one useless noble after another, each arc introducing a new batch of entitled opponents who underestimate the lowborn officer. The setting is a fantasy empire where military advancement is dictated by lineage rather than merit, forcing Hazen to rely on his reincarnated wisdom and cunning to survive and triumph.