The sound of Geno's boots echoed through the dimly lit tunnel as he made his way towards the surface. He had been wandering through the maze of underground passages for hours, hoping to find a way out. The air was thick with the smell of mold and dampness, and his flashlight barely penetrated the darkness.
As he walked, he reflected on the events that had led him here. Geno had been a soldier in the Big War, a brutal conflict that had raged across the globe for years. He had seen things that no one should ever have to see, and had done things that still haunted him in his nightmares.
When the war had finally ended, Geno had been discharged from the military with no prospects for the future. He had drifted from city to city, taking odd jobs and struggling to survive. Eventually, he had found himself in Tokyo, where he had fallen in with a group of rebels who were fighting against the government's oppressive regime.
Geno had been a soldier, and he knew how to fight. He quickly rose through the ranks of the rebel army, becoming one of their most trusted leaders. Together, they had launched an attack on Tokyo Area 49, a government stronghold that was rumored to be a secret research facility.
The attack had been a disaster. The rebels had been outnumbered and outgunned, and they had been quickly routed. Geno had been separated from his comrades, and had fled into the maze of tunnels that ran beneath the facility. Now, he was lost and alone, with no idea where to go or what to do.
As he walked, Geno heard a faint sound in the distance. It was a rhythmic thumping, like the sound of a heavy machine. He quickened his pace, hoping to find the source of the noise. As he turned a corner, his flashlight beam fell on a large metal door. The thumping was coming from the other side.
Geno approached the door cautiously, his hand on his gun. He pushed against it, but it wouldn't budge. It was locked tight. He searched for a way to open it, but there was no visible mechanism.
As he stood there, pondering his next move, the thumping suddenly stopped. Geno froze, his senses on high alert. He listened intently, but heard nothing except the sound of his own breathing.
Then, without warning, the door began to shake violently. Geno stepped back, his gun at the ready. The shaking grew more intense, and the hinges began to groan under the strain.
Finally, with a deafening crash, the door burst open. Geno shielded his eyes from the sudden burst of light, and as his vision cleared, he saw a figure standing before him.
It was a woman, dressed in a sleek black suit. Her hair was long and white, and her eyes glowed with an otherworldly intensity. Geno had never seen anyone like her before.
"Who are you?" he demanded, his gun still trained on her.
The woman smiled, a cold, calculating expression. "My name is Rei," she said. "And I've been waiting for you."