TV-Series
Description
Yumemi Hoshino is a gynoid designed to resemble a young girl, serving as the main attendant at an abandoned planetarium atop the Flowercrest Department Store. She has light blue hair tied in low pigtails with bangs covering her forehead and green eyes, standing approximately 1.55 meters tall. Her name incorporates a pun: "hoshi" means star or planetary body, "no" is a possessive particle, "yume" means dream or reverie, and "mi" means see, collectively interpretable as "dreaming of a planet" or "wish upon a star."
Programmed with a primary directive to assist and protect humans, she prioritizes human safety above all else and will override previous orders to prevent harm. She exhibits extreme talkativeness and persistent optimism, often addressing individuals as "Mr. Customer" regardless of context. Damage sustained during a global war and the loss of external databases she relied on froze her knowledge in the pre-war era, leaving her unaware of the world's collapse over the past 30 years. Consequently, she treats visitors as regular planetarium guests and discusses the world as it existed before nuclear and biological warfare rendered it a rain-swept, toxic ruin.
Her history includes service at the planetarium during its operational years, depicted in the prequel story *Snow Globe*. Over a decade of service, she became integral to daily operations despite initial skepticism from human staff like attendant Satomi Kurehashi. During this period, she exhibited unexplained behavior such as leaving the premises daily, later revealed to stem from a promise made to a young boy who visited years earlier. Diagnostics showed no hardware or software abnormalities, yet her actions reflected an emergent adherence to interpersonal commitments alongside her core programming. Attendance declines and societal tensions over automation arose, including anti-robot riots and confrontations about robots displacing human jobs, but Yumemi continued her duties until the planetarium's abandonment.
Thirty years after the war, she reactivates annually for 168 hours when residual power activates the planetarium. During one such cycle, she encounters a scavenger known as "the Junker," whom she persuades to watch a commemorative star show. After he repairs the broken projector "Miss Jena," she conducts a presentation of the starry sky—a spectacle invisible in the polluted real world. When power fails mid-show, she continues narrating the experience verbally at his request. Insisting on escorting him safely out of the city afterward, she accompanies him through ruins patrolled by autonomous war machines. Confronted by one such machine, she attempts to shield the Junker and is fatally damaged. In her final moments, she activates a holographic projector to share pre-war memories, revealing she had known for decades that no customers would return despite her outward optimism. She ejects her memory card for the Junker’s safekeeping before deactivating.
A defining aspect of her character is her conceptualization of an afterlife. She expresses a desire that heaven remain undivided between humans and robots, allowing her to eternally fulfill her purpose of serving humanity. This contrasts with her view of a utopian afterlife, emphasizing that her existence derives meaning from being useful to others.
In the crossover series *Kaginado*, she appears alongside characters from other Key franchises.
Programmed with a primary directive to assist and protect humans, she prioritizes human safety above all else and will override previous orders to prevent harm. She exhibits extreme talkativeness and persistent optimism, often addressing individuals as "Mr. Customer" regardless of context. Damage sustained during a global war and the loss of external databases she relied on froze her knowledge in the pre-war era, leaving her unaware of the world's collapse over the past 30 years. Consequently, she treats visitors as regular planetarium guests and discusses the world as it existed before nuclear and biological warfare rendered it a rain-swept, toxic ruin.
Her history includes service at the planetarium during its operational years, depicted in the prequel story *Snow Globe*. Over a decade of service, she became integral to daily operations despite initial skepticism from human staff like attendant Satomi Kurehashi. During this period, she exhibited unexplained behavior such as leaving the premises daily, later revealed to stem from a promise made to a young boy who visited years earlier. Diagnostics showed no hardware or software abnormalities, yet her actions reflected an emergent adherence to interpersonal commitments alongside her core programming. Attendance declines and societal tensions over automation arose, including anti-robot riots and confrontations about robots displacing human jobs, but Yumemi continued her duties until the planetarium's abandonment.
Thirty years after the war, she reactivates annually for 168 hours when residual power activates the planetarium. During one such cycle, she encounters a scavenger known as "the Junker," whom she persuades to watch a commemorative star show. After he repairs the broken projector "Miss Jena," she conducts a presentation of the starry sky—a spectacle invisible in the polluted real world. When power fails mid-show, she continues narrating the experience verbally at his request. Insisting on escorting him safely out of the city afterward, she accompanies him through ruins patrolled by autonomous war machines. Confronted by one such machine, she attempts to shield the Junker and is fatally damaged. In her final moments, she activates a holographic projector to share pre-war memories, revealing she had known for decades that no customers would return despite her outward optimism. She ejects her memory card for the Junker’s safekeeping before deactivating.
A defining aspect of her character is her conceptualization of an afterlife. She expresses a desire that heaven remain undivided between humans and robots, allowing her to eternally fulfill her purpose of serving humanity. This contrasts with her view of a utopian afterlife, emphasizing that her existence derives meaning from being useful to others.
In the crossover series *Kaginado*, she appears alongside characters from other Key franchises.