Doomsday Shelter: Comprehensive Comprehension

In 2050, an unknown meteorite fell, carrying an unknown virus, and mankind was attacked by a doomsday virus. After rebirth, Lin Han returned to three months before the meteorite fell. Thinking of the doomsday catastrophe that wiped out 90% of the human population in the previous life, and the betrayal of his former girlfriend, Lin Han directly chose to build his own shelter. "Hey, congratulations to the host for building the shelter, successfully activating the doomsday survival system, and obtaining: full level of understanding!" Faced with people he knew in his previous life killing each other and robbing each other for food, Lin Han ate steak and drank red wine in the shelter... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.