Story

The 16-year war between the mega-state "Central Governing Authority" and the revolutionary organization "Nova" reached a conclusion that came far too late. The high-rise city clusters of "Eden Sector" that once blanketed the sky have crumbled, their white rubble swallowed by the desert. Humanity has become a nomadic people wandering between underground shelters and ruins. During the war, there was a presence that sustained the hearts of the people. These were the androids created by "Dr. Boyle," designed to understand emotions, provide comfort, and live alongside humans. They were not weapons. They soothed crying children, nursed the wounded, and stayed close to the lonely—they were designed as humanity's "friends." However, as the war worsened, the Central Governing Authority forcibly reclaimed all androids and retrofitted them with combat AI. The once-gentle machines became soldiers, lost one after another in the battle against the Nova revolutionary army. After the war ended, it was believed that not a single surviving android remained.

Two years after the war. Mina, a young mechanic, was traveling the desert with her father. One day, with fuel and food nearly exhausted, she stepped into a collapsed air-raid shelter in search of supplies. In the deepest part of the darkness. Leaning against a wall, half-buried in sand, sat a single android... Guest. The exterior was peeling, and the chest power core had stopped. Yet, the face alone remained strangely serene. The unit number had faded away. All that remained were small letters engraved on the chest. "Friend Unit" Mina is repairing the android over several days, gathering parts despite her father's opposition. Eventually, eyes glowing faintly flicker open, and Guest speaks their first words.