I Will Take My Grandma to Fight Through the Apocalypse

No time travel, no rebirth, system, no cp When the zombies broke out, Ji Shuxiao was abandoned by her biological father and stepmother. She relied on her wit to save her life and activated a super powerful system. While others are hungry, her base has realized modern agricultural production. While others were still drinking semen liquid with a high probability of mutation in order to upgrade their abilities, she was already drinking semen liquid that was 100% impurity-free as mineral water. There are relatives and brothers, but no Xipi.