TV-Series
Description
Horizon Ariadust, originally designated as P-01s, is the central heroine of the story. She is an automaton, a sophisticated mechanical being, who works as a clerk at the Blue Thunder bakery and café on the flying city-ship Musashi. Her appearance is that of a young woman with long silvery-white hair and blue eyes, but her body incorporates synthetic materials. She has a unique physical trait where the skin from her neck to her shoulders and down to her fingers is black, housing sensitive drive mechanisms, while the rest of her body uses materials that mimic human skin. Due to inefficient heat dissipation in her design, she is prone to sweating. Her head features sensors disguised as hair accessories, and her limbs can be detached for maintenance.
Her background is deeply tragic. She was once a human girl and the childhood friend of both Tori Aoi and his sister, Kiyo Aoi. After dying from severe injuries in a carriage accident a decade ago, her soul was salvaged by her father, the ruler of Mikawa, and placed into an automaton body. To prepare for an impending apocalypse, her father extracted all her human emotions and transformed them into nine powerful artifacts known as the Mortal Sin Armaments. She herself is the ninth and most crucial of these armaments, the unification operating system named Jealousy, which holds the core of her being. As a consequence, she was reborn as P-01s without any memories of her past life and with no capacity to feel or express emotions. When she first appeared on the Musashi a year before the story begins, she had no prior memories and was taken in by the owner of the Blue Thunder, where she became the shop's mascot.
As an automaton, her personality is defined by the lack of emotion. She is extremely stoic, rarely showing any facial expression and speaking in a purely logical manner. This often makes her seem unsociable or harsh, though this is not born from malice but from her mechanical nature. Her verbal responses to Tori Aoi are notably sharp and blunt, a trait that humorously mirrors how the original human Horizon would also scold him. Despite her lack of feelings, she is diligent and hardworking, taking her job at the bakery and her other, more unusual habits seriously, such as caring for the algae in the sewers and cleaning graves in a local cemetery.
For most of her existence as P-01s, she had no personal motivations, simply following her duties. Her role in the story is primarily as the objective that drives the plot forward. After being revealed as the heir to Mikawa and the key to the Mortal Sin Armaments, she is taken into custody by the Testament Union to be executed. The main cast, led by Tori Aoi, rescues her, and her existence becomes the catalyst for the conflict with other nations. She is appointed as the Vice King of Musashi and the representative of the Far East, giving her a formal political rank alongside her other identities. Her journey is not one of personal ambition but of reclaiming her lost self, with her companions vowing to retrieve the armaments containing her stolen emotions.
Her key relationships are central to the narrative. The most important is with Tori Aoi, the seemingly inept but deeply beloved student council president. Tori had loved the human Horizon and was the first to recognize P-01s for who she truly was. His unwavering, cheerful, and often perverted devotion to her is the primary force that saves her and keeps her hopes alive. She also has a close friendship with Masazumi Honda, a fellow student, and is protected by the rest of her classmates. She remains under the care of the Blue Thunder's shopkeeper, who provides her with a sense of home.
Through the events of the second season, Horizon undergoes her first significant developments. Her journey to England and her retrieval of two Mortal Sin Armaments allow her to slowly reacquire pieces of her own soul. After using the armaments of Lamentation Laziness and Rejection Avarice in the Armada Naval Battle, she successfully reclaims the emotions of sadness and greed. This marks a major turning point. With the return of her greed, she is finally able to form a personal motivation: to use that very greed to build a new, ideal world alongside Tori, moving beyond simply being a tool for others.
As an automaton, her notable abilities are formidable. She is the only being capable of fully activating all nine Mortal Sin Armaments, serving as the central system that controls their combined power. She can wield the armaments she recovers, such as firing a powerful beam from the Lamentation Laziness armament. She also possesses a unique ability to create extradimensional storage spaces within her own body, a function that manifested after a long sleep period needed for a system upgrade. This allows her to store items, including the large Mortal Sin Armaments, within a subspace hidden on her person.
Her background is deeply tragic. She was once a human girl and the childhood friend of both Tori Aoi and his sister, Kiyo Aoi. After dying from severe injuries in a carriage accident a decade ago, her soul was salvaged by her father, the ruler of Mikawa, and placed into an automaton body. To prepare for an impending apocalypse, her father extracted all her human emotions and transformed them into nine powerful artifacts known as the Mortal Sin Armaments. She herself is the ninth and most crucial of these armaments, the unification operating system named Jealousy, which holds the core of her being. As a consequence, she was reborn as P-01s without any memories of her past life and with no capacity to feel or express emotions. When she first appeared on the Musashi a year before the story begins, she had no prior memories and was taken in by the owner of the Blue Thunder, where she became the shop's mascot.
As an automaton, her personality is defined by the lack of emotion. She is extremely stoic, rarely showing any facial expression and speaking in a purely logical manner. This often makes her seem unsociable or harsh, though this is not born from malice but from her mechanical nature. Her verbal responses to Tori Aoi are notably sharp and blunt, a trait that humorously mirrors how the original human Horizon would also scold him. Despite her lack of feelings, she is diligent and hardworking, taking her job at the bakery and her other, more unusual habits seriously, such as caring for the algae in the sewers and cleaning graves in a local cemetery.
For most of her existence as P-01s, she had no personal motivations, simply following her duties. Her role in the story is primarily as the objective that drives the plot forward. After being revealed as the heir to Mikawa and the key to the Mortal Sin Armaments, she is taken into custody by the Testament Union to be executed. The main cast, led by Tori Aoi, rescues her, and her existence becomes the catalyst for the conflict with other nations. She is appointed as the Vice King of Musashi and the representative of the Far East, giving her a formal political rank alongside her other identities. Her journey is not one of personal ambition but of reclaiming her lost self, with her companions vowing to retrieve the armaments containing her stolen emotions.
Her key relationships are central to the narrative. The most important is with Tori Aoi, the seemingly inept but deeply beloved student council president. Tori had loved the human Horizon and was the first to recognize P-01s for who she truly was. His unwavering, cheerful, and often perverted devotion to her is the primary force that saves her and keeps her hopes alive. She also has a close friendship with Masazumi Honda, a fellow student, and is protected by the rest of her classmates. She remains under the care of the Blue Thunder's shopkeeper, who provides her with a sense of home.
Through the events of the second season, Horizon undergoes her first significant developments. Her journey to England and her retrieval of two Mortal Sin Armaments allow her to slowly reacquire pieces of her own soul. After using the armaments of Lamentation Laziness and Rejection Avarice in the Armada Naval Battle, she successfully reclaims the emotions of sadness and greed. This marks a major turning point. With the return of her greed, she is finally able to form a personal motivation: to use that very greed to build a new, ideal world alongside Tori, moving beyond simply being a tool for others.
As an automaton, her notable abilities are formidable. She is the only being capable of fully activating all nine Mortal Sin Armaments, serving as the central system that controls their combined power. She can wield the armaments she recovers, such as firing a powerful beam from the Lamentation Laziness armament. She also possesses a unique ability to create extradimensional storage spaces within her own body, a function that manifested after a long sleep period needed for a system upgrade. This allows her to store items, including the large Mortal Sin Armaments, within a subspace hidden on her person.