Planet Kushia (惑星クシア Wakusei Kushia) is a cyber planet that first appeared in Ultraman Geed The Movie: Connect the Wishes!, serving as Gillvalis' base of operations and where the movie climax takes place.
Ultraman Geed The Movie
Planet Kushia was originally a peaceful world from the World of the Land of Light where the Kushians lived. The race created Telaharkis (テラハーキス Terahākisu) now named as Gillvalis, to preserve the planet's peace. When Gillvalis went rogue and wiping out its creators with the first model of Galactrons, Kushia becomes a cyber planet and its operation base.
Jugglus Juggler visited the cyber planet, and heard about the Red Steel before fleeing to Geed’s Earth, which Gillvalis had chosen as his next target to judge and reset. After defeating the remaining Galactrons, Ultraman Orb, Ultraman Geed and Ultraman Zero went to the cyber planet and defeating Gillvalis after a tough struggle. With Gillvalis' death, Cyber Planet Kushia presumably faded into existence.