Reborn in the Name of the Father

In the last ten years of the apocalypse, a lonely old man who was nearly sixty years old was reborn after his lonely death. The old man's first thought after his rebirth was to find his son, change his son's tragic fate in the apocalypse, and help his son get his daughter-in-law. Although the daughter-in-law that his son liked was also a man, the two had been entangled for several years in their previous life with no good results and both died tragically in the apocalypse. The old man decided that the two must be connected in this life, so he worked hard to come up with ideas to help his son chase his wife and fight monsters to survive in the apocalypse. In one sentence, it is: a story about a 60-year-old straight man who was reborn and worked hard to give his son advice to pursue his straight man-in-law.