Ultraman: Daigo Disappeared? Then Bring in Duanmu Yan

[Decisive and Ruthless + Ultraman + Armor Hero + Kamen Rider] My name is Duanmu Yan. That day, I switched places with another version of myself from a different world. From my teammates, I learned that the other me was called Da Gu. This world has Golza too, but why are all these Golza so huge? Thunder Yatalais can't deal with them at all. But no matter. I can transform into Diga, and I've even fused with the Plasma Spark Tower.