Rei
レイ, Rei the Number One Star, Zero the Silver, Zero the Burning, Zero the Hurricane
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Rei is an ultimateuser and Card Quester who is seeking The Ultimate Battle Spirits. He travels through space in his ship The Number One Star Ship. His partner is a dragon named Mugen who turns into the card Mugendra. He is also friends with a robo named Salt who cooks pizza.
Source: Battle Spirits Wiki
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