Experiments are underway to find the means for Xio officers to turn monsters into Spark Dolls. The monster Black King strikes, with Daichi and X uniting to fight it, but the Alien Nackle uses this opportunity to steal the Spark Dolls from Asuna.

X is turned to stone by the dark beast Gargorgon, who has arrived to take the energy from Planet Gold stored within Rudian. Having escaped to Earth from Gold, tE rU laments how Daichi and X were petrified while protecting him.