Start with Magic Cards and Recover Monsters

Kaiba Hiiragi was hit by a ball, which was bigger than a person. But the most important thing is that the body of this ball is the Dragon of Creation. The reason why it hit Hiroyuki was because he wanted to choose him as its agent... But there was a little accident... As the agent, Hiroyuki's task is to send the monsters back; but this workload is a bit heavy, because these monsters are scattered in other worlds, and "worlds" are plural. After getting the stamp from the black-hearted boss, Hiiragi was sent by his father to a small town called Tomoeda Town, where he met a girl named Kinomoto Sakura...