His thoughts would instantly be pulled back to the cruel apocalyptic world outside, thinking of the ruins, the hunger and disease, and the fight for survival at all costs. Xiao Yi's mood became heavy, and his heart, which was just full of joy, was now shrouded in gloom.

He would stand up and look far in the direction of the sound. Although he could not see anything, the sound would bring out chaotic and tragic pictures in his mind. The sun still shone on him, but he could no longer feel the warmth. Instead, he felt a chill rising from the bottom of his heart.

The occasional gunshots and shouts were like merciless alarm bells, constantly reminding Xiao Yi that the peace and happiness he had were so fragile and short-lived, while the outside world was still mired in endless suffering and chaos.

The occasional gunshots and shouts struck Xiao Yi's heart again and again. Several times, the desire to go out and explore grew wildly like weeds in his heart.

Whenever it was late at night and Xiao Yi was lying on the simple bed in the cave, those voices would keep appearing in his mind. He tossed and turned, unable to fall asleep, his thoughts drifting far away, imagining the unknown world outside.

He would ponder in his mind whether other survivors had found a safer shelter, built a strong fortress that could withstand the apocalyptic disaster, and created a better living environment than he had now.

Driven by those thoughts, Xiao Yi would sit up, his eyes fixed firmly on the cave's exit. He imagined himself stepping out of this familiar cave, carrying his backpack, and bravely heading towards the unknown distance. He seemed to see himself shuttling through the ruins of the dilapidated city, carefully avoiding various dangers, just to find a glimmer of hope.

Sometimes, during the day, when he'd finished his daily work and sat at the cave entrance, basking in the sun, this thought would strike him. He'd gaze out at the vast expanse, his eyes filled with longing and curiosity. He'd think of the other survivors, perhaps forming a cohesive community, helping each other and sharing resources. Children would laugh, adults would toil, and everything would be full of life and energy.

This imagination made Xiao Yi's heart beat faster and his blood boil. He clenched his fists, and the urge in his heart became stronger and stronger, almost driving him to get up immediately and embark on a journey of exploration full of unknowns. However, every time he was about to take action, the fear of the unknown and the reluctance to give up his current stable life would make him hesitate and fall into deep entanglement.