TV-Series
Description
Kaja Bergmann is a central figure in the story, a ghost from the World War II era who has not aged in over sixty years. She originally came to Japan as an exchange student from Germany and attended the same school as her best friend, Arashi, during their youth. In the present day, she maintains the appearance of a teenage girl with distinctive white hair and blue eyes.
In terms of personality, Kaja serves as a foil to the more lively and carefree Arashi. She is characterized by a polite and cool demeanor, often appearing reserved or distant. This surface-level composure, however, masks a deeper, more complex emotional state. Having existed as a ghost for six decades, she has developed a somewhat cynical or cold outlook at times, particularly when confronted with the fears and anxieties of the living. A defining aspect of her character is her quiet, enduring love for a man she knew in the past, a connection that anchors her existence and prevents her from moving on. Despite the passage of time, she remains unable to confess her true feelings to him.
Kaja shares the same supernatural ability as Arashi: the power to travel back in time. However, a crucial limitation defines her role in the story. Unlike Arashi, who can connect with a boy, Kaja can only form the necessary psychic link to travel through time with a living girl from the present. This restriction is attributed to her shyness or potential awkwardness around boys. Her primary role in the narrative is thus activated when she forms a connection with the character Jun, who is one of the few people aware of Jun's true gender. Together, Kaja and Jun travel to the past, often experiencing the harrowing reality of Japan during wartime air raids.
Her key relationships are central to the plot. Her friendship with Arashi is the most enduring, as they are both ghosts from the same era who understand each other's unique circumstances. The most pivotal relationship she develops in the present is with Jun. Kaja serves not only as a time-travel partner for Jun but also as a confidante, being among the first to know her secret. Their bond is tested and deepened through shared, intense experiences in the past, such as surviving bombings, which forces both characters to confront their fears and emotional vulnerabilities.
Throughout the series, Kaja experiences subtle but significant development. She begins as a more passive and cynical figure, seemingly resigned to her ghostly half-existence defined by an unrequited love from decades ago. Her interactions with the living characters, particularly the forceful and emotional Jun, begin to challenge her static worldview. The anger and fear displayed by Jun in the face of wartime danger, and Jun's direct confrontation of both the former café manager and Kaja herself, act as a catalyst for Kaja to start re-evaluating her own perspective on life and love. She starts to change, slowly opening up and becoming more proactive, moving away from a state of mere waiting.
Aside from her specific time-travel ability, which requires a living female partner, Kaja does not display a wide array of unique special powers. Her primary notable ability is her ghostly nature itself, which grants her apparent immortality and an unchanging appearance across the decades. She is also shown to have a fondness for simple, modern pleasures, with ice cream noted as her favorite dessert.
In terms of personality, Kaja serves as a foil to the more lively and carefree Arashi. She is characterized by a polite and cool demeanor, often appearing reserved or distant. This surface-level composure, however, masks a deeper, more complex emotional state. Having existed as a ghost for six decades, she has developed a somewhat cynical or cold outlook at times, particularly when confronted with the fears and anxieties of the living. A defining aspect of her character is her quiet, enduring love for a man she knew in the past, a connection that anchors her existence and prevents her from moving on. Despite the passage of time, she remains unable to confess her true feelings to him.
Kaja shares the same supernatural ability as Arashi: the power to travel back in time. However, a crucial limitation defines her role in the story. Unlike Arashi, who can connect with a boy, Kaja can only form the necessary psychic link to travel through time with a living girl from the present. This restriction is attributed to her shyness or potential awkwardness around boys. Her primary role in the narrative is thus activated when she forms a connection with the character Jun, who is one of the few people aware of Jun's true gender. Together, Kaja and Jun travel to the past, often experiencing the harrowing reality of Japan during wartime air raids.
Her key relationships are central to the plot. Her friendship with Arashi is the most enduring, as they are both ghosts from the same era who understand each other's unique circumstances. The most pivotal relationship she develops in the present is with Jun. Kaja serves not only as a time-travel partner for Jun but also as a confidante, being among the first to know her secret. Their bond is tested and deepened through shared, intense experiences in the past, such as surviving bombings, which forces both characters to confront their fears and emotional vulnerabilities.
Throughout the series, Kaja experiences subtle but significant development. She begins as a more passive and cynical figure, seemingly resigned to her ghostly half-existence defined by an unrequited love from decades ago. Her interactions with the living characters, particularly the forceful and emotional Jun, begin to challenge her static worldview. The anger and fear displayed by Jun in the face of wartime danger, and Jun's direct confrontation of both the former café manager and Kaja herself, act as a catalyst for Kaja to start re-evaluating her own perspective on life and love. She starts to change, slowly opening up and becoming more proactive, moving away from a state of mere waiting.
Aside from her specific time-travel ability, which requires a living female partner, Kaja does not display a wide array of unique special powers. Her primary notable ability is her ghostly nature itself, which grants her apparent immortality and an unchanging appearance across the decades. She is also shown to have a fondness for simple, modern pleasures, with ice cream noted as her favorite dessert.