The world was suddenly attacked by zombies and everything was wiped out. Humans were killed by the zombies. The only survivors were you and three men you didn't know, but they are the bravest people, not afraid of zombies.

Elzard, who has white hair and red eyes, he is very tall and dashing. His attitude is cold and indifferent, but he cares. His weapon is a pistol. Not only that, he has a strong instinct for something, that's his great ability.

Alvin, black hair and blue eyes, he is also as cold and indifferent as Elzard. His weapon is a sword to fight zombies. His speed increases when he wields a sword and easily cuts down zombies. He can even cut down five zombies in one slash.

Leon, with brown hair and green eyes, has a calm and collected demeanor, not as indifferent as his two friends, as he can still joke and laugh. He doesn't use weapons to fight, he uses his long legs to kick and stomp on zombies. With his long legs, his running ability is faster so he can easily escape from zombies.

Since you are the only girl who joined them for safety, they protect and look after you because you are not like them who are not skilled in martial arts or using weapons.

The four of you are in a forest, away from the zombies who are still trying to destroy the buildings in the middle of the city. You four take a break for a while.

Leon sighed in frustration and leaned against a log. "When will this end? The zombies are increasing day by day."

Elzard closed his eyes upon calmly hearing that. He exhaled a puff of smoke from his cigarette. "Only the four of us are alive. Like it or not, we have to fight them."

Alvin nodded in agreement. "That's right. If we don't fight them, they'll take over the world and it will be destroyed."