Associated names: Zakk, AR

as Zakk:

-> http://twitter.com/ZAKK_ccc

-> http://zakk-info.tumblr.com/

as Ishie Hachi:

-> https://twitter.com/ishiehachi

-> http://ishiehachi.tumblr.com/

-> http://comic.pixiv.net/works/833 (Rojiura Brothers)