On board the Brave Olivine, the Rising Volt Tacklers revel at the mysterious Pokémon who transformed from Liko’s pendant. Liko’s grandma, Diana, might know more about it, so Liko, Roy, and Friede set off to the Wild Area of Galar to find the castle where Diana is staying. Led by Diana’s Squawkabilly, the Trainers reach the castle and meet up with Diana, who is surprised to see the pendant Pokémon—it appears to be Terapagos, one of the Pokémon who traveled with the Ancient Adventurer Lucius. Meanwhile, Hamber confronts Amethio about his actions and begins to set his own plan into motion…