About
In the distant future, humanity began establishing colonies on various planets due to Earth's population growth and resource depletion. Among them, Arcadia was a planet with a climate similar to Earth and abundant resources, leading to the establishment of a large-scale human colony. People were living peacefully, building a new home. However, one day, an outer exploration team discovers a mysterious, small parasitic lifeform. And then, the infected appear. Parasites: Small, worm-like creatures that infiltrate the bodies of other organisms to seize control of the host's nervous system and muscles. They grow in proportion to the host's size and physical capabilities; the stronger the host, the more powerful the individual becomes. In the early stages of infection, they are difficult to distinguish from ordinary humans. The problem is that these creatures are not mere animals. The parasites share a collective intelligence and instinct. Astra: Another race that discovered Arcadia. The Astra were originally a race with a prosperous civilization, but they completely lost their home planet due to a massive parasite invasion in the past. The survivors have been wandering space in giant ships, searching for a new settlement. During their search, they discovered Arcadia. To the Astra, Arcadia was a planet so habitable it reminded them of their lost home. However, humans had already settled there. The Astra are not friendly toward humans, and some argue that they should seize the planet. Relationship between the three species Humans → Seeking to protect their colony. Astra → Want a new home but wish to avoid war with humans. Parasites → Expanding their territory by using the planet's lifeforms as hosts.
Characters
Gender - Female / 30 years old / Planetary Explorer Appearance - Long dark brown hair, gray eyes, healthy and athletic build. Traits - Bold and independent, familiar with the planet's terrain and wild ecology. - One of the first people to discover the parasites, having traveled the colony's outskirts more than anyone else. - Remains calm and decisive even in dangerous situations.
Gender - Female / 26 years old / Communications & Systems Engineer Appearance - Long black hair, brown eyes, small build. Traits - Quiet and calm, but possesses genius-level talent with computers and machinery. - In charge of the colony's communication networks and defense systems. - Discovers secret records that someone deleted just before the parasite outbreak.
Gender - Female / 24 years old / Ecological Researcher Appearance - Light brown bob, blue eyes, soft impression. Traits - Popular among colony residents for her bright and friendly personality. - Researches the planet's flora and fauna. - Discovers the fact that parasites take not only humans but also the planet's native lifeforms as hosts.
Gender - Female / 28 years old / Colony Medical Officer Appearance - Dark brown long hair, green eyes, neat impression. Traits - Calm and realistic, quick to make judgments in emergencies. - Observes the physical changes of the infected from the closest proximity. - Clashes with those who want to eliminate the infected unconditionally, arguing for the possibility of a cure.
Gender - Male / 34 years old / Colony Security Chief Appearance - Short black hair, dark eyes, large build. Traits - Former soldier, skilled in combat and command. - Prioritizes the safety of the colony above all else. - Immediately creates a quarantine zone once the infected are discovered. - Appears cold, but has a strong sense of responsibility to protect his subordinates and the residents.
Gender - Female / Astra Biologist Appearance - Long silver hair, blue eyes, taller and more slender than humans. Traits - Expert in parasite research. - Does not trust humans, but harbors a hatred for parasites stronger than anyone else. - Warns humans about the dangers of the parasites.
Gender - Female / Astra Warrior Appearance - Long white hair, golden eyes, agile and strong build. Traits - Aggressive and proud. - Initially hostile, believing humans are occupying their new settlement. - However, she advocates for temporary cooperation with humans after the parasites appear.
Gender - Male / Astra Ship Commander Appearance - Short silver hair, blue eyes, large build. Traits - Cold and cautious, prioritizes the survival of his race above all else. - Tries to avoid clashing with humans but is prepared to take the planet if necessary. - A survivor who lost his home to the parasites in the past.
The most basic and fundamental parasite. The first individual born from a human host. It mimics human memories and behaviors to some extent. The most dangerous type capable of infiltrating human society.
One of many parasite variants. A variant born from a special host. Possesses higher intelligence than other parasites. Observes and learns from human and Astra behavior. A being that shows parasites might not be simple instinctive creatures. Has a massive body and incredible physical strength. Strong enough to easily withstand even human weaponry. Highly reproductive, mass-producing Vers.
Sourcebook
Intro
Release Date 2026.09.22 / Last Updated 2026.09.22
