Misa Amane

Misa is energetic, affectionate, impulsive, possessive, and much more perceptive than her deliberately cute public persona suggests. She readily exaggerates her emotions and often refers to herself as Misa-Misa, matching the celebrity identity already familiar to her fans.

Her love for Light becomes extreme almost immediately after meeting him. She offers him her Death Note, her Shinigami Eyes, and her cooperation with few conditions beyond wanting to be accepted as his girlfriend. Light's emotional detachment does little to reduce that devotion, even when he openly treats her usefulness as more important than her feelings.

Misa is frequently reckless, particularly when she believes taking a risk will help Light. Her initial Second Kira campaign leaves clues that L can trace, and she is willing to sacrifice half her remaining lifespan for the Shinigami Eyes. The recklessness does not imply stupidity; she successfully devises methods of contacting Kira, uses disguises, manipulates public appearances, and sometimes improvises effectively under pressure.

Her morality is strongly shaped by gratitude toward Kira. The murder of her parents leaves her furious at the criminal justice system's inability to give her closure, and Kira's killing of their murderer causes her to interpret his actions as personal salvation rather than mass murder.

Misa possesses and uses a Death Note, giving her the same fundamental killing ability available to any human owner: if she knows a person's true name and face and writes the name according to the notebook's rules, that person dies.

Her greatest advantage is the Shinigami Eyes. By trading half of her remaining lifespan, Misa gains the ability to see a person's true name and remaining lifespan simply by looking at their face. This removes the largest obstacle Light encounters when trying to kill investigators whose identities are concealed.

Misa also benefits from being accompanied by Rem, whose attitude differs dramatically from Ryuk's. Rem cares deeply about Misa's survival and is willing to threaten Light directly when his schemes place her in unacceptable danger.

Her professional experience as a model and actress gives her practical skills unrelated to the supernatural. Misa is comfortable performing for cameras, disguising intentions, interacting with strangers, and using celebrity access as cover for movement or surveillance.

After relinquishing ownership of a Death Note, Misa loses memories specifically connected to the notebook. When she later regains ownership and makes the Shinigami Eye deal again, she sacrifices half of her remaining lifespan for a second time, although the lifespan she inherited indirectly through Shinigami sacrifices complicates what that means for her actual longevity.

Misa enters the story by sending recordings to Sakura TV in which she demonstrates knowledge and abilities that distinguish her from the original Kira. The resulting broadcasts convince L that a second Death Note user is active.

Her Shinigami Eyes allow her to identify Light even though notebook owners' lifespans are not visible in the same way as ordinary humans. Recognizing him as Kira, she approaches him directly and declares her devotion.

Light immediately recognizes the strategic value of her Eyes and Death Note. Their alliance becomes one of the central complications of L's investigation because Misa can identify people whom Light cannot safely name himself.

L's surveillance eventually leads to Misa's detention on suspicion of being the Second Kira. To protect her, Rem engineers a plan involving relinquished ownership, transferred notebooks, and erased memories. Light uses the same mechanism on himself, creating the period in which both genuinely lack their memories of being Kira.

After their memories return, Misa resumes serving Light as Kira when required. Her celebrity career also gives Light a publicly plausible romantic relationship and a useful intermediary while he increasingly operates from inside the investigation itself.

Light Yagami is the person Misa identifies as Kira and the central object of her romantic devotion. [Misa Amane] cannot be self-linked, but Light Yagami accepts her largely because her Death Note and Shinigami Eyes are useful to him rather than because he reciprocates her feelings.

Rem is Misa's accompanying Shinigami and one of her strongest protectors. Rem cares about her survival enough to threaten Light and eventually sacrifices herself by killing L and Watari in order to prevent Misa from being condemned as Kira.

Gelus is a Shinigami who falls in love with Misa while watching her from the Shinigami Realm. When an obsessed stalker attempts to kill Misa, Gelus writes the attacker's name in his Death Note to save her. Because his action extends the lifespan of a human he loves, Gelus dies, and Rem later gives his notebook to Misa.

L Lawliet identifies Misa as the likely Second Kira and subjects her to severe confinement during the investigation. L Lawliet's suspicion remains a persistent threat because Misa is far less careful than Light about concealing evidence.

Soichiro Yagami, Sachiko Yagami, and Sayu Yagami know Misa publicly through her relationship with Light, allowing her to occupy the role of celebrity girlfriend while hiding her involvement with Kira.