Seishiro Nagatomo

Seishiro Nagatomo (長友 清史郎) is an exorcist and abbot at the Southern Cross Boys' Monastery.

Appearance
Nagatomo is a man with short, wavy brown hair and dark eyes. He wears the typical cassock of a priest.

Personality
Nagatomo appears to be fairly responsible, acting as Shiro's second in command around the monastery. He is quick and decisive in combat.

True Cross Academy arc
Nagatomo is first seen at the monastery with the rest of the priests.

In the anime, he is later seen waiting with the others for Rin to return. When Yukio volunteers to go looking for his sibling, the others follow him.

When Astaroth attacks the monastery, Nagatomo is put in charge of securing the spiritual barriers. When their security is bypassed, he quickly summons his familiar, Malkin, to deal with Astaroth's minions. However, his familiar is quickly dispatched when it attempts to attack the King of Rot himself.

Later, it is revealed during the events when Kuro went rogue, that Nagatomo had accompanied Shiro and Yukio on their first mission to suppress the Cat Sídhe.

Meister & Abilities
Nagatomo is formerly a first class exorcist with meisters in Aria, Dragoon and Doctor.

Aria
Seishiro is a deacon and capable with arias; By reciting a variation of Ephesians 6:14-16, he can grant powerful protection to the subject, enough to survive a blast of Rin Okumura's Blue Flames when submerged in water.

Tamer
Before his skills in the manga were revealed, Nagatomo is shown using a summoning circle made of salt to summon the bountiful garden spirit, Malkin.