Natasha Romanova met Gai at a place called Rusalka in Tundra, Greenland in 1908. Maga Zetton had appeared out of nowhere & Gai transformed into his true form Ultraman Orb Origin to fight.
He had used his Finisher Orb Supreme Caliber to defeat Maga Zetton but this was too powerful that along with defeating Maga Zetton it also killed Natasha. After this he had sealed this form in order to prevent losing lives of others.
Shin Matsudo's Dream is to build a Robot of Justice. The one that will help his dream come true is a Small Company named Kofune. When the robot with pure feelings appears before him, he names the robot as Galactron.
After Ultraman Orb Origin appears, Gai's heart begins to hurt because of the Bad memories of the past but Naomi Yumeno who had seen Ultraman Orb Origin in her dream helps Gai & provides him the courage.
Because of Maga Orochi's Power Zetton & Pandon's Card got fused and this gave birth to the Fusion Monster Zeppandon