Returning to the Apocalypse, I Take Space to Trap the Zombie Emperor

In the last life, He Sui'an took in his cousin's family, but was pushed into a zombie swarm and died without a complete body. After being reborn and returning to the pre-apocalyptic world, she awakened her personal space and brought her own spiritual spring water and black earth. Relying on the memories of her previous life, she sells houses, stockpiles goods, builds safe houses, and slaps the best relatives in the face. I thought I could live a stable life, but in the end, I accidentally picked up a zombie and asked to adopt it. Okay, keep it as long as you want. Unexpectedly, this zombie not only has extraordinary strength, but also possesses lightning powers, making it a must-have for home travel in the apocalypse. So, while others were busy escaping in the apocalypse, she directed the zombies in space to hoe, water, expand, and cook... The more the fields are planted, the more vegetables are harvested. But, why are there more and more zombies?