Rebirth of MC Novel

After dying during an apocalypse, the protagonist is mysteriously reborn one year before catastrophe strikes. Upon his return, he discovers a hidden family heirloom that grants him access to extraordinary treasures: a magical space, a cultivation guide, a mystical lake, and an immortal peach tree. Armed with this knowledge of the impending disaster, he embarks on frenzied preparations, stockpiling supplies to ensure survival and comfort during the coming upheaval. His modest goal is simply to live well when chaos arrives. However, his careful plans take an unexpected turn when he encounters a mysterious figure. This person is a high-ranking military officer commanding an entire city, distinguished by three defining characteristics: his ever-present rifle, constant cigarettes, and an unmistakably bastardly demeanor. Despite his rough exterior and seemingly antagonistic nature, this man persistently pursues the protagonist with unexpected affection, repeatedly declaring his intention to be a devoted husband and treat his "wifey" right. What began as solitary preparation transforms into an unforeseen romantic entanglement.