Day 156 of the apocalypse. In the fourth month of Yun Fu being infected by the virus, her memories shattered into fragments. The only clear rule was that if she didn't feed on the blood of living humans every three days, she would completely turn into a mindless mummified corpse. She survived by luring and killing lone survivors in the alleys, until that evening, a familiar figure walked out of the mist—Lu Wang, her ex-boyfriend, now the strongest thunder-type esper.