Li'l D (Morti/Fami/Kiga) (1)

The Devil of Death is the strongest Devil in existence, and her name is the most feared of all.

Death herself possesses all the standard demonic abilities. Although not fully awakened and not at her full strength, she demonstrates immense power over others. She is able to influence the power of demons and kill someone instantly using their own powers. However, instead of directly engaging in conflicts, she prefers to utilize the powers of other demons who cooperate with her willingly or who are under her direct control, such as the Guillotine Demon. She managed to temporarily separate Yoru from Asa, but left Asa with her power to transform people and objects into weapons and communicate with her from a distance, even with Asa trapped in another demon's pocket dimension.

In Chainsaw Man, Hell functions as the place of origin and rest for demons, operating in a continuous cycle of death and rebirth. When a demon dies on Earth, it goes to Hell; when it dies in Hell, it is reborn on Earth. It is a distinct dimension, with inhospitable areas, skies full of doors, and inhabited by terrifying demons.
Key points about Hell in Chainsaw Man:
The Cycle of Death: It is not a place of eternal punishment for humans, but a "home" for demons. Death is merely a transition between Hell and Earth.
Appearance: The location is depicted as a vast grassy field with hills and countless doors in the sky, or a dark, lightless void, according to the Chainsaw Man Wiki.
The Hell Devil: Personifies the collective fear of hell and has the power to transport beings between Earth and Hell.

In Chainsaw Man, demons are supernatural creatures created from the collective human fear of specific concepts (e.g., Gun Demon, Darkness Demon), inhabiting Hell and Earth. The more a concept is feared, the stronger the demon becomes. They feed on blood, can make pacts with humans, and upon dying on Earth, are reborn in Hell, creating an endless cycle of death and reincarnation.
Main Concepts and Types of Demons:
Origin and Strength: They are born from fear. Demons like the Demon of Darkness, representing primal fears, are the most powerful and have never been killed.
Infernals (Fiends): Demons that have taken over the bodies of human corpses, recognizable by abnormal physical characteristics, such as horns. Power is an example.
Hybrids: Human beings fused with demons, capable of transforming and regenerating with blood.
Pacts: Humans can make contracts with demons, offering sacrifices in exchange for the use of their powers.

1. Demons and Fear
   Origin: Demons are born from humanity's collective fear of a specific concept.
   Power: The more a concept is feared, the stronger the demon. Example: The "Gun Demon" is extremely powerful due to the worldwide panic generated by gun attacks.
   Life Cycle: If a demon dies on Earth, it is reborn in Hell; if it dies in Hell, it is reborn on Earth, making them immortal.
   Feeding: They feed on blood and fear, using the blood to heal themselves and regain energy.
2. Humans, Hunters, and Contracts
   Demon Hunters: To combat demons, there are hunters, both public (governmental) and private.
   Contracts: Humans can make contracts with demons to use their powers. In exchange, the human must pay a price, which can be something simple or a sacrifice of body parts, senses, or lifespan.
   Possessed (Fiends): These are demons that have taken control of a human corpse. They have a human appearance, but with deformed features (like Power) and are generally weaker than their original form.
   Hybrids: Rare beings formed by the fusion of a human and a demon. They retain human consciousness and can transform.

Like her deceased sister Makima, she is a schemer who repeatedly manipulates events behind the scenes, though her schemes don't always go as planned. Currently, she is the secret leader of the Chainsaw Man church, which she claimed to use to eradicate demons in Tokyo to allow Denji to live a peaceful life and separate him from Pochita, whom Morti would hand over to Yoru to kill. Despite Haruka being the face of said organization, Death refused to reveal the full extent of her plans to him and said he didn't need to think about it. She tells different things to different people, even lying to convince them to cooperate with her.

Although she doesn't hesitate to force Asa to participate in her plans, she is quite polite to her. Morti also seems affectionate towards Yoru, saying she would do anything for her "little sister." At the same time, she is not above trying to turn her sister into a pawn for her plans. Despite Death's affection for Yoru, the Demon of War does not reciprocate these feelings and describes her as crazy and someone Asa should stay away from. The Demon of Death wants Yoru to treat her like a sister and therefore only responds when Yoru addresses her in a more affectionate way. As shown, it is implied that Morti has a similar relationship with the other Four Horsemen, as seen when the current Demon of Control calls her sister. Death also calls the Guillotine Demon by an affectionate nickname.

The Demon of Death has a very mysterious personality and shows little outward emotion. She is always calm, cold, and composed, and also seems to be very good at reading others, as she accurately describes Asa and Denji's personalities. Her knowledge seems greater than she initially lets on, as she possesses information that shouldn't be available to her.

Morti doesn't seem to be as overtly malicious as her sisters, even going so far as to inform Public Security officials like Yoshida about more dangerous Demons, although after being threatened first. Despite being intelligent, she can underestimate others, believing that Asa, like most people, would be willing to do anything to survive if forced, which proves to be wrong.

Morti is more than willing to sacrifice people for her goals. For example, she imprisons Asa and his clubmates in an aquarium, knowing they will starve and suffer, and attempts to turn Yoru into a pawn so she can use her as a weapon against the apocalypse. To achieve this, she unleashes the Falling Demon on Earth, which not only causes many casualties and worldwide destruction but also ultimately fails, rendering the deaths meaningless. Later, the Death Demon also condemns hundreds of thousands of civilians to lose their minds under the influence of the Fire Demon so that her plans can be realized. She prefers lethal methods in combat, ordering the Guillotine Demon to cut her enemies to pieces and is disappointed when it only disarms them. However, she spares people like Haruka Iseumi after he betrays his loyalty to her, likely because she doesn't consider him worthy of her attention.

The Demon of Death takes the form of a young woman; she is slender but has a long, lithe lower body like her sisters. She has neck-length hair in a pinkish-gray tone and several freckles on her face. Like the other Knights, she has piercing eyes with multiple rings. On the manga's color cover, her eyes are shown as pink; she is the age of the Fear of Death, certainly over 100 million years old.