Koyuki stands trapped in an auction house serving as merchandise for the highest bidder while her collar represents years of abuse and forced labor stripping away her identity completely. A necromancer attack causes the building walls to explode revealing a hidden death cloud trap inside the facility. She runs blindly into the fog and nearly dies as her life force drains away rapidly from her weakened body. Waking up in a hospital she finds her collar removed by a royal agent offering freedom instead of continued ownership. The deal requires ten years of service to the Princess in exchange for citizenship rights and legal protection. She accepts the risk because staying a slave is worse than risking death in battle for a better life. The Major explains her survival indicates a rare affinity for death magic which is feared by many nobles. Koyuki realizes this power makes her valuable to the kingdom and potentially dangerous to enemies who wish her harm. She begins training immediately preparing for the Wolf's Den military academy entrance requirements set by the administration. The experience changes her perspective on freedom and responsibility forever as she steps into a new world.

An ambush occurs on the road to the academy involving multiple mages and soldiers targeting the small convoy. Koyuki watches her escort die protecting her while fear grips her heart tightly during the chaotic fight. She confronts a fire mage who burns one of the guards alive causing rage to build within her soul. Instinct takes over as she grabs his hand and forces death mana into his body violently. He withers instantly turning to bone proving her lethal potential without formal training or spells known. She discovers a rune for death magic spontaneously during the heat of battle amidst the smoke. The encounter leaves her exhausted but victorious establishing her place among survivors of the war zone. Her mana pool proves massive compared to standard graduates requiring careful management to prevent collapse. She learns to vent excess energy safely to avoid self-harm during high intensity casting sessions. This victory marks the transition from victim to warrior in her eyes permanently changing her destiny.

Koyuki creates Nyx an undead feline companion through accidental discovery of binding magic during a quiet moment. She raises her first skeleton using bones provided by the adventurer guild secretly in a laboratory setting. The field exercise tests their skills against spiders and vampiric nightshade monsters in the Korrah Forest. They survive the ambush thanks to teamwork and magical coordination between friends including water and earth affinities. Koyuki learns to animate corpses efficiently during combat scenarios without panic or hesitation during the crisis. She gains a loyal guardian who can change size and intimidate enemies visually without speaking words. The relationship builds trust between human and undead overcoming societal prejudices against necromancers in the region. Later experiments allow her to create a draugr ice armor user from a corpse found in the wild. This demonstrates her growing mastery over necromantic arts and alchemical enhancements for battlefield utility.

A grand ball hosted by Princess Olivia brings the nobility together in one location to showcase power. Koyuki is introduced publicly showcasing her power to bolster military strength against external threats from Ilestria. On the way home an ambush targets the carriage driver and passengers directly in a warehouse district. They fight off attackers using undead minions and elemental magic combined effectively to overwhelm enemy numbers. Survivors find evidence linking the Winston family crest to the bribery scheme behind the attack plot. The Brotherhood offers recruitment through a zombie intermediary seeking to overthrow the kingdom for their own goals. Koyuki rejects their offer choosing loyalty to the crown despite temptations of absolute power and influence. The investigation reveals deeper conspiracies involving nobles and foreign spies working together to destabilize the realm. She remains vigilant knowing more plots may emerge from the shadows surrounding the academy halls.