Yuu Kajima is an Earth Federation pilot from the very beginning, participating in the Battle of Loum. In late U.C. 0078, he found a mostly intact Zaku in a colony; this discovery would be a great benefit to the Federation's V Project.

Yuu is the leader of the Marmot Team, one of the Federation's experimental corps who test new technologies before they're mass produced and distributed to the Federation Forces as a whole. After the events of the games, Yuu continued on as a Federation soldier for the rest of the One Year War. He remained with the Federation during the Gryps Conflict and first Neo Zeon movement, eventually ending up as a member of Londo Bell during the second Neo Zeon movement. His actions while piloting Blue Destiny 1 earned Yuu the nickname "Blue Death".

~!It is revealed that Yuu was one of the RGM-89 Jegan pilots who assisted in pushing Axis back at the end of Mobile Suit Gundam: Char's Counterattack.!~

Robotic armed freedom fighters fight for Earth's future in this intergalactic tale of the pursuit of freedom. After Earth's overpopulation sends humans offworld to live in space stations, they are abused by the controlling power -- the Earth Federation government. Colonists form the Zeon Dukedom to resolve their disputes and wage the One Year War for independence. For over 20 years, the world of Gundam has reigned over all other mecha anime and manga series. Mobile Suit Gundam: Blue Destiny continues the Gundam legacy with the adventures of Federal Forces second lieutenant Yu Kajima and his special unit of mobile suits. (Source: Tokyopop)

Robotic armed freedom fighters fight for Earth's future in this intergalactic tale of the pursuit of freedom. After Earth's overpopulation sends humans offworld to live in space stations, they are abused by the controlling power—the Earth Federation government. Colonists form the Zeon Dukedom to resolve their disputes and wage the One Year War for independence. For over 20 years, the world of Gundam has reigned over all other mecha anime and manga series. Mobile Suit Gundam: Blue Destiny continues the Gundam legacy with the adventures of Federal Forces second lieutenant Yu Kajima and his special unit of mobile suits.
 (Source: Tokyopop)

When two worlds intersect, a new story begins.
 
After intense fighting, the GUNPLA Battle U.S. Championship enters its final round. Here, the figure of a certain fighter appears.
A few months later Misa Satsukino, building a new GUNPLA in the Ayato Shopping Street, seems to be in a worse mood than usual. As an outlet for her unfocused anger, she sets her completed GUNPLA in a simulator and enters battle, but the GUNPLA is suddenly restrained. On the eve of the huge GB Festa event, the fates of the GUNPLA Fighters are at a critical juncture. 

(Source: Gundam.info)

__Height:__ 173 cm 

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Won Best Song at the 6th Seiyuu Awards (2012) for "ST☆RISH" (shared with Takuma Terashima, Kenichi Suzumura, Kishou Taniyama, Mamoru Miyano, Hiro Shimono) in _Uta no☆Prince-sama♪ Maji Love 1000%_. Won Best Supporting Actor at the 7th Seiyuu Awards (2013).

**Non-Anime Roles:**
- Radio DJ - Kamen Rider Kuuga (TV Series)
- Artem Wing - Tears of Themis (VG)
- Jenua - Epic Seven (VG)
- Dekotorade - Bakuage Sentai Boonboomger (TV Series)
- McBurn - The Legend of Heroes Series (VG)

The story takes place in unnamed timeline, where humanity has highly advanced technology. However, the human population is decreasing and it seems that they're on their way to extinction. 
The protagonists are Leos Alloy, Sthesia Awar and their Haro. They work on a Jupiter base called "Jupiter X", using "General Answer" (or "GA") which contains a massive repository of data about the alternate history of Humanity, Leos travels to the Earths' of the alternate timelines in an effort to collect data that might give them a hint for the evolution of mankind. 
(Source: Gundam Wikia)