...
Master Bertram took some time to return to Extinct Village and have a meal with Uncle and Master Basil, only to learn that Berry had left.
He didn't die; he really left, leaving Extinct Village.
According to Master Basil: "The young man wants to venture out into the world."
Originally, Extinct Village only allowed entry and no exit, but the rule loosened after Master Bertram left the village. After Berry practiced the "Heavenly Destiny Armor Skill" and continually received cultivation resources from Master Bertram, he couldn't bear the lifespan limitations of Extinct Village. He didn't want to cultivate only to die silently in the village—the world was so big, he wanted to see it one last time before the "end of his time."
With his cultivation, no one could detect him quietly leaving the village. He wore a talisman made by Master Bertram, so it wouldn't affect the outside world adversely.