Dark Edge

After his mother's death, Kuro Takagi transfers to Yotsuji Private High School where his father is the proprietor. But Yotsuji is no ordinary school. It holds a strange rule of "No students on campus after dark!" On his first day of attendance, Kuro and his classmates inadvertently break the school's highest protocol and find themselves victims of a faculty zombie attack. Although they manage to narrowly escape, this is but a prelude to more encounters with the undead, especially after Kuro discovers his own blood-ties and latent zombie abilities. From there, it's full steam ahead as this dark and intense action/comedy shifts into high gear.

(Source: ComicsOne) The first 10 volumes of Dark Edge were published in English from September 2004 to March 2009. The first two volumes were published by ComicsOne, which went defunct and passed the license to DrMaster Publications before it too went out of business.