オースチン・オブライエン, Axel Brodie
Austin is a new student hailing from West Academy who enters Duel Academy in the third year. A battlehardened and efficient mercenary he is introduced as Professor Vipers righthand man but later joins Jaden after Vipers dubious actions caused him to betray Viper and subsequently to be imprisoned by Viper. Auston wields a retractable Duel Disk resembling a gun which can be stored in a holster at his waist. In the past he trained extensively with his father a mercenary on jungle terrain learning the art of survival. During his time at West Academy he adapted these skills to the performance of lifethreatening wire stunts to master his drawing technique.