Hakaijuu VS Mahou Shoujo of the End VS Vs Earth

Tachikawa, Tokyo. Akira Takashiro is a normal high school student who is devoted to playing basketball. In the early afternoon on a day that should have gone like any other, a gigantic earthquake suddenly strikes the city. There in the school rubble, Akira witnesses a mountain of dead bodies...and an unknown creature that eats them. The tale that unravels is one that will overpower and shock you!! Get ready for an excellent urban monster attack! (Source: Akita Publishing)

One day, ordinary high school student Kogami Kii finds himself caught up in a strange kind of zombie apocalypse, involving 'magic girls.' While idly looking out of the school window, Kii sees what looks like a little girl hitting a teacher, causing his head to explode violently. Convinced he's dreaming, he goes to the restroom to get his act together. Unfortunately, its not a dream, and he arrives to find the creepy little girl repeatedly saying "magical" as she slaughters his friends and classmates. Soon, Kii and his childhood friend—a quiet, often-bullied girl called Tsukune—are witness to the resurrection of their friends' corpses into a zombie-like murderous mob crying the single word "magical." Now Kii and Tsukune must try to endure with the other survivors, and try to find out what has happened to their world. (Source: MangaHelpers)

In a fight for survival, the enemy of humanity is the earth?! Background Serialization of Vs Earth in Shounen Champion magazine was cancelled, and the story was discontinued, but later in December of the same year, the author, Ichitomo Kazutomo, started to publish on his Pixiv account the continuation titled Vs Earth 78 After (バーサスアース78アフター).