Ultraman R/B: S1 E23 - Crystal Of Destruction Ultraman R/B

The great destructive monster Leugocyte finally arrived on Earth! The brothers' mother, Mio, tried to seal Leugocyte into a blank crystal and the plan worked out. While Mio was just about to throw them away to the other dimention, she was interrupted by Saki, who insists to destroy Leugocyte completely. The Minato brothers decided to save both Earth and Saki. Saki transforms to Hyper Armored Bone Monster Grigio Regina...