Oose

Oose was a member of Civil Security assassinated by Kagetane Hiruko.

Appearance
Although only his head, Oose appeared to be a man of large frame. He sported a full pack of hair on top of his head, with a mustache covering the whole of his mouth. He displayed a large nose along with two, big ears.

The Cursed Children arc
Summoned by Seitenshi to an important meeting along with other Civil Securities, Oose is not able to make it due to being assassinated by Kagetane Hiruko, whom places Oose's head in a box and gives it to Rentaro Satomi as a present.

Anime & Manga Differences
In the anime, Oose's head isn't shown at all, but is kept in the box, although blood does ooze from it.