When Doomsday, I was hoarding supplies

The end of the world has arrived, but Xiao Ran was killed by his wife and family to share his food. Before his death, he only found out that his son was not his own, he was just a poor receiver. However, he was reborn three months before the end of the world and possessed a huge alien space! At the beginning, she divorced her malicious wife, won a big prize in the lottery, entered the stock market, made billions, built a safe house, and accumulated a large amount of materials. In this life, he will fiercely retaliate against his ex-wife's family, and no longer be lowly licking the dog!