The female lead got reincarnated before the apocalypse and there was this golden rain that gives power and she missed it in her last life. She got showered in it this life and got plant related superpower? There is also 4 prominent families. She misunderstood the male lead in her last life and she's avoiding him in this life. Up to what I remember is that the world got super hot after the apocalypse and she found a place with naturally cold habitat and she tried to build a village there or something like that.