Allen Milo

Allen Milo (アレンミロ, Miro Aren lit. Little Rock of a Soldier) is the father of Valentine Milo and was once a member of the Magic Council, though his exact position in it is unknown, he has been sent to prison after being framed for murdering an unnamed member of the council.

Years later after hearing his son has returned from the Tower of Heavenhe escaped from prison, killing several council members at the process of escaping earning him the title The Slayer (ザ スレイヤー, Za Sureiyā) for the large number of kills he has commited.