Tobio Ikuse

Tobio Ikuse, better known as "Slash Dog" is a member of Grigori.

Appearance
He is described by Issei as a Japanese man around the same height as him. Issei states that he is a bit handsome and might be a little older than him.

Personality
Not much is known about his personality, other than the fact that he does not get along with Vali Lucifer for unknown reasons. He seems to have a somewhat serious personality.

History
Not much is known about Slash Dog, except that at some point before the series, he joined the Fallen Angels and became a member of Grigori. He is also one of two humans, the other being Cao Cao, to force Vali Lucifer to use Juggernaut Drive during battle.

The Heroic Oppai Dragon
Slash Dog was mentioned in Volume 11 by Azazel when he was explaining about the current Longinus and its current possessors, stating that he is on another mission.

In Volume 12, he acted as Azazel and Sirzechs Lucifer's bodyguard but does not appear as he was stationed outside.

The Legend of Oppai Dragon and his Lively Companions
He makes his official appearance in Volume 15, where Azazel sent him as a support for Issei and his friends.

Powers & Abilities
Slash Dog possesses the Longinus Canis Lykaon which takes a form of a dog and is considered to be one of the Fallen Angels' top fighters, being one of the two humans capable of forcing Vali into using the Juggernaut Drive.

Trivia

 * Slash Dog bears the same name as Ishibumi's previous work, SLASH/DOG