Introduction: My name is Xiao Ran, a doomsday cicada plan hibernator. After seven cycles of civilization creation and destruction, I am the only living person left. Miracle projects are reduced to ruins, robots and mutant species chase and kill... to the end of the world I met Yao, a leopard girl. I took her back to the past to save her family. The future may not be good, but the future without humanity must be bad.