|Name in Japanese||ハバラギ・ユウヤ|
|Rōmaji Translation||Habaragi Yuuya|
|Voice Actor (Japanese)||Takehiro Satō|
|Voice Actor (English)||Chris Burnett|
|Affiliation||ISDA, Vritra Unit|
Yuuya Habaragi (ハバラギ・ユウヤ Habaragi Yuuya?) is a member of the Vritra Unit and also Itsuki's younger brother. Though he looks forward to fighting beside his sister, he has yet to complete a Resonance or find a Dragon partner.
When the fourth original Dragon from Thanatos appears and destroys the Vritra Unit's space station, he is the first to come in contact with it, but his survival is uncertain as he seemingly appears to have died in the destruction of the station.
Although his survival is uncertain there is the chance he completed a Resonance with the fourth original dragon since it was able to take a Human form.