Return to Before the Doomsday and Build a Shelter from Scratch

Lu Chen, who was stabbed in the back by his girlfriend at the end of the world, traveled back to before the end of the world. I found that I was actually wearing a space ring made in my previous life. If nothing else, hurry up and stock up on supplies! What? You said you have no money? I took the newspaper from my previous life and bought a lottery ticket worth 200 million to calm my nerves! Lu Chen, who died because of a lone wolf in his previous life, decided to change his approach in this life. Build your own base, recruit talents, and work hard to the end to see if you can survive this doomsday first!