Doman Ashiya

Doman Ashiya (蘆屋 道満) is a rival and apparent lover of Abe no Seimei and an archenemy of Kuzunoha. He was first perceived as the Spirit Guardian of Benio Adashino, now he appears as Rokuro Enmado’s “father”, alongside Abe no Seimei.

Appearance
Initially, Doman had short hair that slightly resembles Rokuro Enmado's hair. As time passes, his hair grows longer and turns white in Magano, but becomes black again when he manifests inside Rokuro’s mind. He is also seen with a beard after 1000 years. His originally bright-colored eyes turn black due to being exposed to the miasma of Magano for too long, and he possesses a distinctive sign on his left cheek. He mostly appears in a classical monk outfit.

History
A thousand years ago, people lived under the threat of the Impurity King, not being able to defeat it with just Yang power. Doman is the one who studied the humans who had been exposed to the power of the Impurity King. He removed their Yang power, and as a result, he got a new type of energy, the Yin power. Something went wrong during the experiment and Doman created a monster that grew sharply in Yin power and it was the first Impurity ever created. Doman created the impurities as prototypes for the strongest container of Yin Power, Great Yin.

Before that, he met Abe no Seimei and accidentally found out the truth that the exorcist he had been considering a rival turned out to be a woman. He was rescued and impressed by her beauty and power. Doman internally declared that he had been captivated by her.

Personality
He appears to be confident of himself, even somewhat narcissistic, as he attributed Benio's beauty to his very low degree of consanguinity.

Doman is enthusiastic about finding a way to exorcise Kegare and researching spells, and he’s quite ambitious when he sworn that his name would be renowned throughout the world, thus considering Abe no Seimei a rival.

After being captivated by Seimei, he is shown to be protective over her when he expresses annoyance toward Rokuro when seeing him get greeted by her, comforting and getting angered at Rokuro when he sees Seimei cry, and even calls her “my Haruko”. He shows his desire to converse with Seimei more, showing his eagerness toward her eventual return.

Doman was considered corrupted and evil, as shown when he created Kegare out of humans and wanted to create the Great Yin, no matter how many humans he had to sacrifice.

Powers and Abilities
Doman was a hard-working and quite intelligent exorcist whose only goal was researching spells. He was able to create the first Basara and a new type of energy - Yin power. He can also enchant a powerful spell on Rokuro which is said to need a great amount of spiritual power as great as the amount Rokuro possesses to execute. Additionally, he declares that the existence of every Kegare stems from him and his spells, thus proving how powerful he is.

Etymology

 * The name Doman means "road, way, street" (道) (do) and "full, fullness, enough, satisfy" (満) (man).
 * Doman's surname Ashiya means "reed, rush" (蘆) (ashi) and "roof, house, shop, dealer, seller" (屋) (ya).