As the sun began to set, casting an eerie orange glow over the decimated cityscape, Lena felt the weight of the [System] growing heavier. It wasn't just a tool—it was an all-knowing presence, constantly whispering commands, urging her to act.[System]: "Subject Lena, you must access the nearby energy hub to collect necessary resources. Time remaining: 2 hours."Lena's heart raced. "We have to move," she said, grabbing Elias's arm.They hurried through the darkened streets, the landscape more ominous under the fading light. The air smelled faintly of ozone, an unnatural scent that Lena had come to associate with the alien technology.[System]: "Objective: Complete. Energy source detected. Proceed to activate extraction protocol."Lena hesitated as she reached a large, rusted building that looked like an old power station. It was the site of the energy hub the [System] had identified, but something didn't sit right with her."Do we really want to go in there?" Elias asked, eyes scanning the area."We don't have a choice," Lena answered, her voice tight. "The [System] won't stop until we do what it says."But just as they approached the entrance, another message flashed in her mind.[System]: "Warning: Hostile entity detected. Proceed with caution."Lena froze. "Hostile entity?" She whispered, looking around.Suddenly, from the shadows, figures emerged. They were human, but their eyes glowed with an unnatural light—the unmistakable mark of the [System] on their necks."More marked ones," Elias whispered, taking a step back.[System]: "Security breach imminent. Subject Lena, engage the threat to protect resources."Lena's mind was a blur. She didn't want to fight these people. But the [System] was compelling her to act. She was torn between the human in her and the instrument of destruction she had become."Get ready," Elias said quietly. "We have no choice."