Puzzle & Dragons X: Part One
Ace is an average boy until he hears his name being called by a mysterious egg. The egg leads him to discover the existence of Dragon Callers, humans who tame friendly monsters into allies in their fight against evil. With an egg calling his name, it seems that Ace is destined to be a Dragon Caller, but the road to summoning dragons isn't going to be easy.
There's much training to master, monsters to find, and enemies to defeat. And once training is complete, Ace must take what most kids dread - an exam! Can he "Ace" the exam and fulfill his dreams of becoming a Guild Dragon Caller?