Genre - Seinen

From MangaHelpers: Iori is a high school girl who doesn't know what she wants to do with her future, and tends to run away from things. One day, she is attacked by strange dead-eyed people on her way to school, only to be saved by an equally mysterious long-haired man. Later that day, her friend at school, Jion, seems to fall under the same murderous influence. To her surprise, she finds herself capable of defending herself from his violent attack. Afterward, the long-haired man she met in the morning, Zerozaki Soushiki, arrives once more, this time to invite her to become his little sister. What has Iori become involved with, and will she be able to survive this change to her life? [tethysdust]

It follows the life of a homeless boy living with his "grandpa". The story starts to kick off when they encounter a man trying to commit suicide mumbling something along the lines of before it is too late. Of course from then on the action begins and the dark plot begins to unfold with each volume.

Understudy Yaki Hiroshi has been carrying on with an unremarkable life, when out of nowhere karma struck and some person playing a versatile game found him, making him tumble down - directly before a train! He got sent to the world Gezeruna rather, where an excellent young lady named Ulfina required him. To bite the dust, that is, to spare the world!

In the year 200X, a Japanese fleet consisting of 3 vessels leave on a mission to South America. After encountering a storm, the ship JDS Mirai find itselvf without its escorts and in the year 1942, traveling towards the island of Midway to face the American fleet in one of largest battles in naval history. The crew of the Mirai must decide whether or not to change the course of history by involving itself in WWII.

Akira had been working for a black business for three years, and she was mentally and physically worn out. But one morning, on his usual route to work, he saw nothing but a zombie-infested town. In a world that has completely changed overnight, how will the former company slave Akira lead his life?

Unknown to the world, aliens have begun to invade people's bodies. A young race car driver named Toshio was contracted by a mysterious organization for a "test" for money. That test turned out to be a hellish training to become a Zombie Hunter. Toshio decided to return to a normal life instead, but soon was confronted by the harsh reality of a Zombie Hunter. Surrounded by shallow figures and aliens, Toshio accepts his new life as a Zombie Hunter ... (mangaka never finished the story)

In the year 2008, high school girl Sakura Minamoto is abruptly killed in a traffic accident. Ten years later, Sakura, along with six "legendary" girls from various eras of Japan's history, are brought back as zombies by a man named Kotaro Tatsumi, who seeks to save the Saga prefecture by putting together an all-zombie idol group.

A collection of stories about relationships between men and women either of whom just happens to be a zombie.

Akira Tendo, 24, sits in a trash-filled apartment and watches a zombie movie with lifeless, envious eyes. Subsequent to burning through three hard years at a shifty enterprise in Japan, his soul is broken. He couldn't marshal the mental fortitude to admit his sentiments to his lovely collaborator Ohtori. Then, one morning, he comes across his landlord, who is also a tenant, eating lunch. Akira has never felt more alive, despite the fact that he is running for his life and the entire city is infested with zombies.