Zone-00

Kujou Saburou is an ordinary high-schooler, hyperactive and strangely interested in mysterious (alien) things. He quickly becomes friends with a new transfer student, Shima Ango, who happens to find him in a game of hide-and-seek. But what he doesn't know is Shima's true goal: the extermination of mononoke terrorizing the Toyko area. Caught in the middle of their fight, Kujou loses his head, unsealing an Oni inside of him...

(Source: Bliss)

Zone-00 had four volumes published digitally in English by VIZ Media, under the VIZ Select imprint, from November 18, 2014 to January 20, 2015, before they dropped the license. Before this, Tokyopop published the same four volumes from August 1, 2009 to July 13, 2010.