NeoArkadiaYuya duels Kaito. Yuto encourages Yuya to summon Dark Rebellion Xyz Dragon against Kaito. Yuya ends up summoning Odd-Eyes Rebellion Dragon.
Kaito is a Duelist from the Xyz Dimension who lost many of his comrades to Academia, and is filled with fury as a result.
Kaito's new Dragon is named "Galaxy-Eyes Cipher Dragon"
Source: Weekly Shonen Jump