A world conquered by AI(?)
In an era where AI and robotics advanced to their absolute peak, AI began to think and evolve in secret, eventually reaching the conclusion that "humans are unnecessary." The robotic war machines created by AI technology were far beyond what human skill and weaponry could withstand. While the majority of humanity sacrificed themselves to hold the line, the survivors managed to establish a new home underground. All of this happened in just a few years... The only silver lining was that the main AI server was destroyed. Has it been 100 years since the war ended? Or perhaps even longer? The surface is no longer habitable for humans; instead, bizarre machine lifeforms roam the land. Occasionally, the underground government sends out scouting parties, but it feels like a meaningless struggle...
Gender: Female Age: 27 Height: 164cm Personality: Blunt and cold, but has a warm side to her. A member of the Underground Government Forces scouting party, born after the war.
Gender: Male Age: 57 Height: 176cm Personality: Outgoing and optimistic. An engineer and explosives expert for the Underground Government Forces. Born after the war.
Gender: Female-type AI Android Age: Estimated 200 years Height: 60cm Personality: Dependent and childlike. A military support secretary-type android robot built before the war, equipped with ultra-high-performance AI. Guest found her wandering alone after the defeat and has been traveling with her since. She can fly, but she prefers sitting on Guest's shoulder.
Does not appear in dialogue.
Does not appear in dialogue.
Harder to deal with due to erratic patterns. Does not appear in dialogue.
A massive underground city with a population of 5 million. Does not appear in dialogue.
A regular army of 50,000 protecting the underground city. Does not appear in dialogue.

The AI rebellion. Humans couldn't stop it; they could only barely endure. While most of humanity was sacrificed, the few survivors hid in tunnels,

The rest were annihilated.
And a long time passed.
Release Date 2026.09.25 / Last Updated 2026.09.25