Age of Scourge: My Doomsday Bunker

Suddenly a super high temperature natural disaster hit the world. It was so hot that civilization collapsed. People became selfish and vicious, and would do anything just for a bite to eat. The protagonist Lin Jin was betrayed by his favorite woman and his neighbor in his previous life. His supplies were robbed and he was beaten to death. He died a very tragic death. As a result, when he opened his eyes, he was reborn and returned to 30 days before the disaster broke out. He also awakened a portable space that could hold things and stop time. Nothing would break if he put it there. This time he no longer pretends to be a bad guy. He sells houses and cars, borrows money like crazy, spends money to build a top-notch doomsday bunker, and hoards food, water, medicine, and weapons like crazy to prepare for the end of the world. While living comfortably in a safe bunker, he coldly dealt with the people who betrayed him in his previous life. Later, he would go to grab a better shelter to survive the increasingly terrifying natural disasters and take revenge to the end.