Misha Necron is a central character in The Misfit of Demon King Academy II, introduced as the quiet, reserved younger twin sister of Sasha Necron and a direct descendant of Ivis Necron, one of the Seven Demon Elders. Her origin is rooted in the spell Dino Jixes, which Ivis cast on the unborn Sasha to split her source into two beings, creating Misha as a temporary copy meant to eventually merge back and disappear on the twins' fifteenth birthday. Though she was intended to lack a personality, Misha miraculously developed her own consciousness, yet she was treated as a magic doll and shunned by other demons, leading to profound loneliness and isolation. Aware of her predetermined fate, she resolved to create meaningful memories before vanishing.

Personality-wise, Misha is soft-spoken, often communicating in short sentences, and avoids confrontation, standing in stark contrast to her hotheaded sister. She is deeply perceptive and emotionally sensitive, able to discern the true feelings of others beneath their facades, such as recognizing Sasha's hidden affection and Eleonore's sadness. Her primary motivation is to forge her own identity and maintain the connections she forms, especially with Anos Voldigoad, who becomes her first true friend and protector. Anos refuses to let her disappear and stabilizes her source alongside Sasha's, allowing both sisters to coexist. From that point, Misha's determination to grow stronger and find her own path intensifies.

In the story, Misha plays a vital role as Anos's first ally and a key member of his inner circle. She supports him through magical and emotional means, often using her creation magic to build structures or transmute enemies. In the second season, she accompanies Anos into the spirit world's trials and continues to evolve her abilities. Her relationship with Sasha is complex: Sasha outwardly treated her harshly to protect her, but the truth reveals deep sisterly love, and their bond is restored after Anos's intervention. Misha also develops romantic feelings for Anos, paralleling Sasha's affection, and Anos trusts her enough to confide in her about his own emotions.

Notable abilities include immense magical power—roughly one thousand times that of an average student—and exceptional skill in creation magic, which allows her to construct Demon King Castles, a pseudo-version of Delsgade, and transmute living beings into ice constructs. Her Magic Eyes are remarkably perceptive, enabling her to see the true nature of things, learn spells by observation, and later perceive the thoughts of Anos's fallen subordinates. She also possesses a special item called the Lotus Leaf Ice Ring, which boosts her creation magic. Through Anos's training, she is acknowledged as having the potential to surpass even him in creation magic, as his strength lies in destruction while hers lies in creation. Overall, Misha develops from a resigned, lonely girl into a confident and capable mage who actively shapes her own destiny.