Zombies? but This Is Cherry Blossom Country

Li Fei woke up from the nightmare of being bitten by his zombie girlfriend and was reborn three days before the end of the world. Facing the familiar rental house, I was filled with panic and knew that disaster was coming. In order to change the outcome, he tried hard to find a chance to survive, but helplessly watched his girlfriend turn into a zombie step by step. After killing his beloved with his own hands, the doomsday system is suddenly activated. Where will he go?