Dragon Drive

Oozora Reiji isn't a lazy boy, he's just terribly unmotivated; all the clubs and activities he's joined don't interest him for long. That is, of course, until his best friend Yukino takes him to a underground arcade where an unbelievable virtual reality game is played - Dragon Drive - in which players fight each other with virtual dragons. Reiji ends up throwing all he's got into training a dragon so rare that the Dragon Drive staff are baffled. (myanimelist.net)