Description:

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)

Description:

Thought your life was bad? Sometimes, death is worse. There is no salvation, peace, nor god waiting to receive you into their care. But wait, a god? Maybe you are talking about that big black ball stuck in the room with you. Now you are thrown into a game, fighting green aliens and robot monsters for the chance to survive. When Kei Kurono is killed, he thus finds himself caught in such a game; a test of his skills, morals and will to survive. His life is not his own, his death spat and trampled upon over and over again. What happens if he does not listen? God knows. A word of warning: Gantz is not for the faint-hearted, but neither is it as simple as it looks. Gore, rape and violence is rampant, as are portrayals of greed, violence, and all the ugliness that one sees in society today. (Source: MAL Rewrite)

Description:

A new infection has spread around the planet, that turns people into undead. The story begins a few minutes before the first recorded case, and shows the struggle of six young to survive this new world.

Description:

They arrive in silence and darkness. They descend from the skies. They have a hunger for human flesh. They are everywhere. They are parasites, alien creatures who must invade–and take control of–a human host to survive. And once they have infected their victims, they can assume any deadly form they choose: monsters with giant teeth, winged demons, creatures with blades for hands. But most have chosen to conceal their lethal purpose behind ordinary human faces. So no one knows their secret–except an ordinary high school student. Shin is battling for control of his own body against an alien parasite, but can he find a way to warn humanity of the horrors to come? (Source: Del Rey)

Description:

Plants have taken over the planet. In 2017, the vegetation in Tokyo rose up and toppled human society in moments. The few survivors are forced to live in the relative safety of a subway network, but supplies are running low. Join an average high school student named Akira as he challenges the plants in a struggle for survival! (Source: MangaBox)