Rebirth at the End of the World: Brothers, Don't Be Afraid, My Sister Is Here

Gu Xi was reborn. Go back thirty days before the end of the world. In the previous life, the eldest brother and the second brother were torn to pieces by alien species in order to save her. She watched helplessly, unable to do anything. In this life, she only wants to do one thing - Protect those two fools. The eldest brother said: "Stock up? How much do you need? Is five million enough?" The second brother said: "Kill alien species? Did I teach you? Then I have to see how much you have learned." For thirty days, she drew the memories of the five years in her previous life into a picture album. The weaknesses of the alien species, the location of the crystal nucleus, the secrets of the mother body - write them all down. Then the meteor shower came. The end is coming. When those black monsters surrounded them again, Gu Xi held the dagger and stood forward: "Brother, I will do it this time." Big Brother:? ? ? Second brother: When did my sister become so fierce? ? ?