Orphaned during the Lyran Commonwealth invasion of Marfik during the Fourth Succession War, Yodama was adopted by Kuritan guerrillas, and, after taking part in several operations, he was later recruited into the Kuroi Kiri yakuza family.
Ronin War / War of 3039
Early Clan Invasion
Yodama truly distinguished himself on Turtle Bay with the 14th Legion of Vega. When Clan Smoke Jaguar invaded the planet, they easily dispatched the defenders. Yodama's 'Mech was destroyed by Elementals, though he managed to kill one of them and reconnect with the local yakuza resistance. Upon learning that the Jaguars were holding Hohiro Kurita prisoner, Yodama and his confederates organized an escape, and managed to get off-planet, returning the heir of the Dragon to his father, Theodore Kurita. Yodama was promoted and honored by Theodore, and along with Hohiro he successfully planned and executed the battle of Wolcott, where the Jaguars tasted defeat for the first time.
Battle of Luthien
Yodama later served at the Battle of Luthien as Theodore's liaison officer to Coordinator Takashi Kurita himself. Despite the Coordinator's curses and demands, Yodama was successful in keeping the Dragon's Claws units reeled in until the time came to strike at the Nova Cats' lines.
Yodama was commander of the Izanagi Warriors, the Coordinator's bodyguard unit, in 3054 when separate assassination attempts were made against Takashi at the same time by Michi Noketsuna and Ninyu Kerai-Indrahar, respectively. Though not explicitly stated, it is suggested that Yodama was kept busy while this was going on by some distraction arranged by the ISF. There is no indication Yodama was actually punished for these events. 
During Operation Bulldog in 3058, Yodama was still commander of the Izanagi Warriors, and headed a task force that included the 8th Sword of Light and the ComGuard 66th Division and struck at the worlds of Teniente, Juazeiro and Outer Volta. At the battle of Outer Volta, their opponents were the remains of the Smoke Jaguars' Beta Galaxy Command Trinary, and the remains of the First Jaguar Guards. Honoring his opponents by using Clan single combat rules, Yodama's Izanagi routed their Clan opponents. 
Jihad and Death
During the Ronin War, Yodama piloted a Panther. He spent most of his career using a Phoenix Hawk, though he seems to have switched to a Griffin by 3055. During Operation Bulldog he used a Dragon Fire. 
|“||Davion was a genius. He accomplished things no other leader in the Successor States had done-and it wasn't all due to his legendary luck.||”|
|— Sho-sa Shin Yodama, Port Moseby, 21 Mar 3052|
- Jihad Secrets: The Blake Documents, pp. 36-37 "Around the Sphere - The Lyran Alliance - Bombings and Barbarism"
- Wolf Pack
- The Dragon Roars, p. 10 "Unit Summaries - Operation Bulldog - DCMS Forces"
- The Dragon Roars, pp. 46-47 "Scenario 9: No Mercy"