After being murdered during an investigation, high schooler Ayumu Aikawa finds himself resurrected as a zombie by a necromancer named Eucliwood Hellscythe. Now undying, Ayumu embarks on a quest to track down his killer. His undead existence takes a surreal turn when he crosses paths with the spirited Haruna, a chainsaw-wielding magical girl fighting monsters called 'Megalo.' Absorbing Haruna's powers, Ayumu inherits her duty to combat these otherworldly creatures. Join Ayumu in Kore wa Zombie Desu ka? as he navigates his bizarre new life, filled with supernatural oddities and daily absurdities.