After waking up in a mysterious world, a girl named Meguru explains to the group the truth behind RI-ON and Dragon Drive. She reveals that they are in a world known as Rikyu, where Chibi is regarded as a legendary hero. However, a boy named Gokaku confronts Reiji and claims that he is Chibi's true owner, abducting him and challenging a powerful dragon to prove it. Will Chibi accept this boy as his master, or is it up to Reiji to save both their lives?