My Childhood Sweetheart Comes from the End of the World

She said the end would come in five days, but I didn't believe it. Ten minutes later, the news broke. "I died once," she said. "You died in front of me in the previous life." "This is my second life. I'm coming back to you." Heavy rain. Extremely cold. The sun is hot. A small team, an unfinished building. [Rebirth and stocking up + doomsday infrastructure + team portrait + two-way redemption] When the world reaches zero, love is the only fuel.