One fateful day, Kogami Kii, an average high school student, gets entangled in a bizarre zombie outbreak intertwined with 'magical girls.' Witnessing a surreal scene of a young girl causing a teacher's head to explode, Kii initially questions reality. However, his disbelief shatters as he encounters the same girl ruthlessly attacking his peers, chanting 'magical' amidst the chaos. Alongside his childhood friend Tsukune, a reserved girl often subjected to bullying, they confront the chilling sight of their deceased friends returning as murderous zombies echoing the haunting word 'magical.' Together, Kii and Tsukune must navigate this nightmarish ordeal with fellow survivors, unraveling the mysteries shrouding their world's sudden descent into madness.