Misa Amane’s life was irrevocably altered when a tragic home invasion claimed her parents’ lives. The killer’s delayed trial stoked fears of his acquittal until Kira intervened, executing him and cementing her unwavering loyalty. After a stalker targeting her was killed by the Shinigami Gelus, she inherited his Death Note through the Shinigami Rem, who grew fiercely protective. Gelus’s sacrifice granted her extended life, though she halved it twice to gain the Shinigami Eyes, allowing her to perceive names and lifespans. Motivated by gratitude to Kira and a consuming romantic fixation on Light Yagami, she embraced the role of the Second Kira. Her methods included sending menacing tapes to media outlets, eliminating investigators, and orchestrating events to advance Light’s plans. Though she demonstrated tactical shrewdness—exposing the Yotsuba Group’s Kira—reckless choices led to her capture. Even after memory loss erased her awareness of the Death Note, her devotion to Light endured, compelling her to prioritize his ambitions over her safety. Light manipulated their one-sided relationship, directing her to surrender her Death Note temporarily to evade detection. She resumed her Kira identity upon recovering her memories. Adaptations occasionally expand her background, introducing a brother, while live-action films depict her with brown hair. Her post-Light fate varies: the manga hints at suicide following his death, the anime places her perilously on a skyscraper ledge, and films show her erasing Death Note memories yet preserving a shrine to Light, dying years later. The novel *L: Change the WorLd* references her pop idol career post-Kira, with L secretly amassing her merchandise and noting her shortened lifespan. Her demeanor blends playful charm with ruthless pragmatism, often speaking in the third person and favoring Gothic fashion. While loyal to Light, she eliminates threats without hesitation, embodying moral ambiguity forged by trauma and obsession. Cross and fleur-de-lis motifs adorn her consistently, with her style evolving from Gothic Lolita to idol aesthetics across adaptations.