Misha Necron began existence as a source clone, formed fifteen years before the main events through the magical division of Sasha Necron's body and soul by their ancestor, Ivis Necron. This act destined her to serve as the vessel for the Demon King of Tyranny's reincarnation and to cease existing upon her fifteenth birthday. Her predetermined fate caused most people, including her twin sister Sasha, to avoid forming connections with her, resulting in a life defined by isolation and neglect.

Prolonged social ostracization shaped her reserved and obedient nature. Typically quiet and withdrawn, she kept her thoughts private and avoided interaction. This changed upon enrolling at the Demon King Academy, where she encountered Anos Voldigoad. He treated her with genuine kindness and friendship, becoming the first person to engage with her without prejudice. His actions sparked her initial emotional growth and willingness to form bonds.

Days before her fifteenth birthday, the prophecy of her disappearance nearly fulfilled itself. Sasha, who had secretly sought a way to save her, attempted a spell requiring Misha's rejection—a condition Misha refused despite their strained relationship. Anos intervened by devising an alternative: sending both sisters back in time to fuse with their past sources. This process overrode Ivis's original plan, nullified the prophecy, and ensured Misha's survival. The experience facilitated reconciliation with Sasha, mending their sisterly bond and allowing Misha to develop a more assertive and expressive personality.

Later revelations identified her as the reincarnation of Militia, the Goddess of Creation murdered by the god Arcana. This heritage unlocked latent abilities tied to creation magic. As she accessed memories and powers from her past life, her proficiency in materializing matter advanced significantly. Anos acknowledged her potential to surpass even his own capabilities in this specific domain. Her role expanded in subsequent conflicts involving deities and deeper world mysteries, where her connection to Militia proved strategically vital.

Her magical abilities include extrasensory perception through Demonic Eyes, enabling her to sense magical energy flows, visualize internal physiology, and observe distant objects. She possesses high baseline magical power—measured at one thousand times the average student's during academy assessments—and specializes in creation magic, conjuring inorganic matter like castles without fatigue. Additional capabilities encompass teleportation via Gatom, flight through Fless, contract enforcement with Zect, and longevity inherent to pureblood demons. Her powers amplified after the source fusion and expanded further upon awakening as Militia's reincarnation.

Her development reflects increased confidence and emotional engagement, particularly in supporting Anos and Sasha during confrontations with deities and historical adversaries. Her journey transitions from a passive vessel to an active participant in shaping the world's fate.