Hiroshi Yazaki

When the Golden Race invited other races to join them in the stars, three sentient races answered their call. The Goldens called them the Bronze, Silver and Heroic Tribes. Just before the Gold Tribe left to travel to another Universe, a fourth race appeared, traveling to the stars on their own accomplishments. The Golds named the human race the Iron Tribe. During the passing of time, humanity suffers at the hands of the more dominant races and is now facing extinction. (myanimelist.net)

2 brothers break into a warehouse to escape zombies. They are beaten by thugs and a nurse rescues one brother but they are both bitten by zombies...they must find a cure in time to prevent themselves from becoming zombies. (imdb)

A bioterrorism incident occurs at a university in Western Australia. Chris and Piers from BSAA's anti-bioterrorism unit head to the scene to investigate, and they cooperate with former S.T.A.R.S. member Rebecca, who is teaching at the university. On the scene, they meet a mysterious young man named Tyler Howard.