TV-Series
Description
Aki Hayakawa is a central figure in the Public Safety Devil Hunters, serving as a member of Special Division 4. Tall and handsome with a slim, athletic build, he is known for his distinctive topknot hairstyle, which he originally maintained as part of a payment to a devil he contracted with. He typically wears the standard Public Safety uniform of a suit and tie, and carries a sword on his back.
Aki was born and raised in Hokkaido. His entire family, including his parents and his younger brother Taiyo, was killed in front of him during a devastating attack by the Gun Devil. It was this traumatic event that drove him to become a Devil Hunter, with the singular, obsessive goal of hunting down and killing the Gun Devil to avenge his family. He later explains that clinging to this unrealistic goal is the only way he knows how to keep going, as without it he would be consumed by a sense of emptiness.
On the surface, Aki presents as a stoic, mature, and sometimes blunt individual. He is serious about his work and dislikes those who do not take the job of a Devil Hunter seriously, especially those motivated by superficial or materialistic goals. This is the primary reason for his initial hostility toward Denji, who is more interested in physical comforts than the gravity of their profession. Aki can be ruthless towards his enemies, stating that he ensures the devils he kills suffer a slow and painful death.
However, this cold and detached demeanor is largely a facade. Beneath it, he is surprisingly softhearted and deeply empathetic. Unlike many of his hardened colleagues, Aki has not become jaded; he still openly grieves for fallen comrades and hates to see people get hurt, especially those he considers friends. He is described by his first partner, Himeno, as a normal person in this sense. Aki is also surprisingly domestic, capable of cooking and cleaning, and often acts as the beleaguered caretaker for the more chaotic members of his household.
Aki's role in the story begins as Denji's supervisor and initial antagonist within the organization. He is assigned to be Denji's caretaker, much to his own annoyance, and is ordered to kill Denji if he ever disobeys orders. As the story progresses, Aki becomes a central pillar of the narrative, representing the human cost of the endless war against devils and the struggle to find meaning beyond revenge.
Over time, Aki develops profound bonds with his teammates. Despite a violent first meeting, he grows to care for Denji like a younger brother, seeing echoes of his lost sibling in the hybrid boy. Similarly, he becomes a reluctant guardian for the fiend Power, and the three form a chaotic but genuine surrogate family. He also forms a significant bond with the Angel Devil, starting from a place of mutual distrust but eventually risking his own lifespan to save him. Aki holds deep admiration and romantic feelings for his superior, Makima, trusting her completely, though this trust is ultimately exploited. His relationship with his first partner, Himeno, is particularly important; she taught him how to survive as a hunter, introduced him to smoking, and cared for him deeply. Her death leaves a lasting scar and further fuels his desire for vengeance, though it also strengthens his resolve to protect those who remain.
The most significant arc in Aki's development is his gradual shift in priorities. Initially, his entire existence revolves around revenge against the Gun Devil. He is willing to sacrifice his life and longevity in contracts with devils to gain power. However, after living with and fighting alongside Denji and Power, his priorities change. He becomes terrified of a future where they suffer and die, to the point where he is willing to abandon his lifelong revenge quest and remove himself from a mission to hunt the Gun Devil, simply to keep his new family safe. Tragically, his fate is sealed by the very trust he placed in Makima. After being manipulated and killed, his body is possessed by the Gun Devil, transforming him into the Gun Fiend. In his final moments, his fractured consciousness imagines a peaceful snowball fight with Denji, a final, heartbreaking echo of the childhood he lost and the bond he found.
As a Devil Hunter, Aki is a highly skilled and well-trained combatant, proficient in swordsmanship and hand-to-hand combat. He makes use of contracts with several devils. Initially, he has a contract with the Fox Devil, summoning its massive head with the incantation Kon to bite and consume his targets, but he loses this contract after it is injured in battle. He also wields a nail-like sword from his contract with the Curse Devil; by stabbing an enemy three times, he can summon the devil to inflict massive damage, at the cost of significantly shortening his own lifespan. After losing the Fox Devil, he forms a contract with the Future Devil, who resides in his right eye. This contract grants him the ability to see a few seconds into the future, drastically enhancing his reflexes and combat prediction, with the price being that the Future Devil gets to witness the moment of Aki's death.
Aki was born and raised in Hokkaido. His entire family, including his parents and his younger brother Taiyo, was killed in front of him during a devastating attack by the Gun Devil. It was this traumatic event that drove him to become a Devil Hunter, with the singular, obsessive goal of hunting down and killing the Gun Devil to avenge his family. He later explains that clinging to this unrealistic goal is the only way he knows how to keep going, as without it he would be consumed by a sense of emptiness.
On the surface, Aki presents as a stoic, mature, and sometimes blunt individual. He is serious about his work and dislikes those who do not take the job of a Devil Hunter seriously, especially those motivated by superficial or materialistic goals. This is the primary reason for his initial hostility toward Denji, who is more interested in physical comforts than the gravity of their profession. Aki can be ruthless towards his enemies, stating that he ensures the devils he kills suffer a slow and painful death.
However, this cold and detached demeanor is largely a facade. Beneath it, he is surprisingly softhearted and deeply empathetic. Unlike many of his hardened colleagues, Aki has not become jaded; he still openly grieves for fallen comrades and hates to see people get hurt, especially those he considers friends. He is described by his first partner, Himeno, as a normal person in this sense. Aki is also surprisingly domestic, capable of cooking and cleaning, and often acts as the beleaguered caretaker for the more chaotic members of his household.
Aki's role in the story begins as Denji's supervisor and initial antagonist within the organization. He is assigned to be Denji's caretaker, much to his own annoyance, and is ordered to kill Denji if he ever disobeys orders. As the story progresses, Aki becomes a central pillar of the narrative, representing the human cost of the endless war against devils and the struggle to find meaning beyond revenge.
Over time, Aki develops profound bonds with his teammates. Despite a violent first meeting, he grows to care for Denji like a younger brother, seeing echoes of his lost sibling in the hybrid boy. Similarly, he becomes a reluctant guardian for the fiend Power, and the three form a chaotic but genuine surrogate family. He also forms a significant bond with the Angel Devil, starting from a place of mutual distrust but eventually risking his own lifespan to save him. Aki holds deep admiration and romantic feelings for his superior, Makima, trusting her completely, though this trust is ultimately exploited. His relationship with his first partner, Himeno, is particularly important; she taught him how to survive as a hunter, introduced him to smoking, and cared for him deeply. Her death leaves a lasting scar and further fuels his desire for vengeance, though it also strengthens his resolve to protect those who remain.
The most significant arc in Aki's development is his gradual shift in priorities. Initially, his entire existence revolves around revenge against the Gun Devil. He is willing to sacrifice his life and longevity in contracts with devils to gain power. However, after living with and fighting alongside Denji and Power, his priorities change. He becomes terrified of a future where they suffer and die, to the point where he is willing to abandon his lifelong revenge quest and remove himself from a mission to hunt the Gun Devil, simply to keep his new family safe. Tragically, his fate is sealed by the very trust he placed in Makima. After being manipulated and killed, his body is possessed by the Gun Devil, transforming him into the Gun Fiend. In his final moments, his fractured consciousness imagines a peaceful snowball fight with Denji, a final, heartbreaking echo of the childhood he lost and the bond he found.
As a Devil Hunter, Aki is a highly skilled and well-trained combatant, proficient in swordsmanship and hand-to-hand combat. He makes use of contracts with several devils. Initially, he has a contract with the Fox Devil, summoning its massive head with the incantation Kon to bite and consume his targets, but he loses this contract after it is injured in battle. He also wields a nail-like sword from his contract with the Curse Devil; by stabbing an enemy three times, he can summon the devil to inflict massive damage, at the cost of significantly shortening his own lifespan. After losing the Fox Devil, he forms a contract with the Future Devil, who resides in his right eye. This contract grants him the ability to see a few seconds into the future, drastically enhancing his reflexes and combat prediction, with the price being that the Future Devil gets to witness the moment of Aki's death.