Two years after his battle with Dark Lugiel ended, Ginga returns to reunite with Hikaru on Earth after Alien Chibu Exceller planned to manifest the power of the Victorium Crystals that he stole from the Victorian civilizations.
Sometime later, Hikaru found a Victorium Crystal while he was on an adventure to Yucatan, Mexico, and the Ginga Spark glowed for an unknown reason. When he met the UPG members Arisa Sugita and Gouki Matsumoto, who tried to stop Shepardon from devastating the countryside, he hijacked the UPG EV1 Schnauzer and tried to stop Shepardon himself, although he didn’t succeed.
Hikaru later meets Shou, a young man whom he had a vision of when he touched the crystal, but Shou states that he is different from the humans on Earth. Later, Hikaru witnesses a new Ultraman, Ultraman Victory, that Shou transformed into earlier, and because of the debris that landed on Arisa and Gouki, Hikaru wishes for more power to help his friends.
Once again, Hikaru transforms into Ultraman Ginga and battles EX Red King, defeating him with the Ginga Cross Shoot. Though the event ended in a plot twist when Shou/Victory stole the Spark Doll and used to against Ginga. As both Ultra about to clash, they stopped due to energy depletion. Hikaru briefly met Ginga before he was taken by the two UPG members where they recruited him in the team. After Hikaru saved Shou two times during their encounter with Eleking, he gained the man’s respect though
Shou still retained his aloofness until he changed during his encounter with Gudon. Ginga at the same time gained acess to Strium Mode by Ultraman Taro, whom turned himself into the Strium Brace. Since then, both human hosts and their respective Ultras had cooperated to save the Earth from Alien Chibu Exceller and his minions. Near the end of the series’ first half, both Ultraman Ginga and Victory killed by Alien Chibu Exceller when he MonsLived into Five King and attacked them with his might.
After being revived by the UPG members, both of the Ultras’ human hosts transformed and fought Five King in round two. Victory distracted the chimera monster with his Victorium Slashes for Ginga to get close to destroy his Victoriums with his Ginga Spark Lance, reducing Five King’s power. Victory goes on the same plan while Hikaru/Ginga Strium destroy Five King’s parts. As the monster tried to escape, both of them attacked it’s wings, disabling Exceller to retreat. He put an end to Five King by using Ultraman Taro’s Storium Ray as the monster exploded. With the battle is over, they fly towards the sunrise.