Boyan

Boyan (ボヤン, Boyan) is a member of the Kouga Clan, and a member of the Hakuei Ren's Household.

World Exploration Arc
Boyan is rushing to the Kou Empire on a horse along Hakuei Ren, who will attend the Emperor's funeral, Seisyun Ri and the other members of the Kouga Clan. There, he is introduced to the Prince Koumei Ren by Hakuei as a member of her Household.

Djinn
Boyan uses the powers of Hakuei's Djinn, Paimon.

Trivia

 * Though Boyan and Bator were originally introduced in Night 17, though were only named in Night 145.