The younger of the Bernett brothers, Odin begins the series as an enthusiastic but inexperienced test pilot for MO-V. Rash and impulsive, he has a tendency to rush headlong into fights before evaluating them. He and Odel are the only two who can use the PX System that was designed for their "G-UNITs", two unique and powerful mobile suits created by Dr. Berg. Living in the shadow of his brother, he wants to prove himself to those around him though he has yet to fully master the PX System however, unlike Odel who already has and is considered an ace pilot. Inspired when he hears of the five Gundam pilots who appeared on Earth to fight for the freedom of their home colonies, he proclaims his Geminass 01 as a Gundam too.
Initially eager about his role as a peacekeeper and defender of MO-V, Odin is forced to face reality as the war drags on. His first taste of real combat comes when Roche Nattono and the Stardust Knights, elite members of the special forces group OZ Prize, show up and declare war on MO-V. After Odel goes missing in action, his presumed death forces Odin to mature and become more responsible. Additionally, his skills also improve as he gains experience in battle and he is eventually able to activate the PX System and utilize it to its full potential, eclipsing his brother's abilities.
The origin of his name is the Russian word for "one" (ОДИН pronounced Adin). His name is also translated as Adin in many sources.
Odin Bernett from SD Gundam G Generation Overworld