Dulio Gesualdo

Dulio Gesualdo is an exorcist reincarnated into an Angel by the Archangel Michael as his "Joker". He possesses the second-strongest Longinus, "Zenith Tempest".

Appearance
Dulio is a young man with blonde hair, green eyes, and dressed in priest clothes. He has 10 pure white wings, which are a symbol of his powers.

Personality
Dulio is known to be a carefree person, and is constantly traveling around the world in his quest to savor tasty cuisines. In fact Griselda Quarta mentions that the moment Dulio finds out about a delicious cuisine, he disappears immediately and cannot be contacted at all. Dulio has also been shown to be quite lazy, as demonstrated when Michael ordered him to take care of any suspicious Grim Reapers, he ended up freezing all of the Grim Reapers because he couldn't be bothered to check all of them.

History
Dulio is extremely famous in the Church for his strength which earned him the title "The Strongest Exorcist" and was sent mainly against High-Class Devils and other dangerous evil creatures. He was reincarnated into an Angel by Michael at some point after the creation of the Brave Saint system.

The Heroic Oppai Dragon
Dulio is briefly mentioned in Volume 11 of the novels, when Azazel is explaining about the Longinuses to Issei and the others, revealing to them the wielder of Zenith Tempest, the second strongest Longinus. Irina calls him "Dulio-sama", hinting that he is on a totally different level than her.

He makes his full appearance in Volume 12 under Michael's orders to check up on Hades and his Grim Reapers for any suspicious actions while escorting Sirzechs Lucifer and Azazel to Hades' base. Dulio later returns to the Heavens after freezing all of Hades' Grim Reapers.

The Legend of Oppai Dragon and his Lively Companions
In Volume 15, he makes another appearance alongside Slash Dog at the Hyoudou Residence. He and Slash Dog were ordered by Michael and Azazel, respectively, to become sparring partners for Issei.

Powers & Abilities
Skills: He is known to be the strongest exorcist ever, capable of taking on High-Class Devils and monsters alone. He is, in fact, so skilled that he is being considered as a candidate to become a Seraph.

Light Spear: After being reincarnated as an Angel, Dulio gained the ability to use light-based abilities and create weapons made from light.

Flight: Being a Angel, Dulio can use his wings to fly.

Equipment
Zenith Tempest (煌天雷獄（ゼニス・テンペスト） Zenisu Tenpesuto): Dulio possesses the second-strongest Longinus, which has the ability to control all weather as well as its elemental attributes.

Trivia

 * He was mentioned by Siegfried in Volume 9 who calls him the Brave Saint's Joker but was not named.