Rei
レイ, Rei the Number One Star, Zero the Silver, Zero the Burning, Zero the Hurricane
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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