2055, The end of the world is coming. The number of human beings is decreasing day by day, and the streets are filled with zombies who only know how to eat people without consciousness. The only remaining humans have built bases, there is a lack of food, and the number of zombies is increasing day by day. The reduction of women represents the difficulty of human reproduction and desire. The evolution of human abilities has ushered in the bad news of zombie evolution. A life of darkness day after day, year after year. Where will humanity go from here? Let's see how the three children survive in this cruel apocalypse, strengthen their relationship, and become friends of life and death.