Luna's voice softened, filled with a mix of empathy and sorrow. "Given the passage of time, it's uncertain whether your friends are still alive. The odds are not in their favor, considering how much time has passed and the dangers they would have faced. However, I don't entirely want to give up hope. There's always a chance they might have found a way to survive, or at least left behind traces of their existence."
Zack's sense of guilt and disappointment increased a lot, and it came from the harsh reality that while he had only experienced a few intense weeks of battles and training, his friends had endured decades of relentless fighting against monstrous creatures.
The weight of this difference hit him hard, making him feel as though he had failed them by not being there to support them sooner. This realization brought forth a painful self-awareness: he had let down those he cared about most despite his best efforts and intentions.