OVA
Description
Dontres is a supporting character from the Air Gear franchise, specifically appearing in the OVA titled Air Gear: Kuro no Hane to Nemuri no Mori - Break on the Sky. He is an original member of the legendary Storm Rider team, Sleeping Forest, and holds the distinguished title of the original Rumble King.

His background reveals a unique history as a first-generation Gravity Child and a key figure in the early days of Storm Riding. Before his time with Sleeping Forest, Dontres was possibly a famous rapper, a career he continued to pursue by holding live concerts even as he rode with the team. His personality is not extensively detailed, but his role as the Rumble King and his fighting style suggest a methodical and resilient character who is confident in his defensive capabilities.

Within the story of the OVA, Dontres appears when Sora Takeuchi dispatches members of the original Sleeping Forest to confront the up-and-coming team Kogarasumaru. His primary role in this conflict is as an obstacle, using his formidable defensive techniques to block the path of Kogarasumaru. He manages to halt their advance with his version of the Rumble Wall, forcing the team to leave one of their own, Buccha, behind to engage him in a solo battle. This demonstrates his function as a powerful gatekeeper figure who tests the strength of the newer generation.

Dontres's key relationships are primarily with his teammates in the original Sleeping Forest. He is often considered the weakest member of the group, though this likely excludes Ine, another member. In the conflict between Sora and Kilik, Dontres chose to side with Sora, alongside other members like Black Burn, Falko, and Spitfire. This allegiance defined his actions in the OVA. He also has a notable partnership with his teammate Kilik, with whom he can execute a combination technique. This move, known as the Rumble Sound Wave, involves Dontres activating his Regalia and throwing Kilik, who then uses his own powers to create a devastating area-of-effect attack.

His character development in this OVA is limited, as he primarily serves as an antagonist to showcase the growth of Kogasarumaru. While he defeats Buccha in their battle, it is later revealed that Buccha managed to destroy Dontres's Regalia, a significant loss for the Rumble King. This event implies a passing of the torch and demonstrates that even the original Kings are not invincible.

Dontres possesses several notable abilities derived from his unique Regalia. Unlike most Regalia that are attached directly to Air Trecks, his is placed on his forearms and is disguised as a boom box he carries over his shoulder when not in use. His power allows him to manipulate the density of the air, using it to create solid defensive walls that can push enemies back. He is particularly formidable in enclosed spaces, where he can use the echoes generated off walls to amplify his power many times over, creating dense blasts of air to hammer at opponents. This technique is called his "audience of the overroad," as the echoes respond like the roar of a crowd of tens of thousands of people. He also displays incredible endurance, withstanding multiple powerful attacks from members of Kogarasumaru, including Ikki's Pile Tornado, Kazu's "Time" and "Flame," and Agito's Fang, remaining unscathed.