Cereza

Cereza (チェレーザ) is the main antagonist from Ultraman R/B and an alien entity that possess Makoto Aizen as his vessel during the series.

Pre Ultraman R/B
Cereza was an alien from the far reaches of the universe, landing on Earth after the Ayaka Star crashed on Earth 1300 years ago. It wandered around on Earth for many centuries, going on a quest to receive the power of Ultraman. 15 years prior to the series, he possess a worker named "Makoto Aizen" to be used as his vessel so that he could blend in with society. Cereza then spent his time working at Aizen Tech to get further to his goal, using Mio Minato's research to create the Gyros. Mio eventually came to know about Makoto's schemes, so she stole the Gyros and ran away, disappearing for many years.

Ultraman R/B
As Makoto Aizen, Cereza begin to orchestrate monster attacks, watching Ultraman Rosso and Ultraman Blu battle against them through the Minato Brothers, while allowing them to collect the elemental crystals. Soon, Cereza revealed his origins and true nature to them, and transformed into Ultraman Orb Dark to show them what a "real" Ultraman is after being disgusting by their "crude" fighting style.

Powers and Abilities

 * Possession: Cereza became Makoto by possessing the body of a worker.
 * Endurance: In episode 3, Makoto as "Cereza" most likely inherited this ability from Cereza himself, where Makoto was able to rise up as if it was nothing after being hit by a petrified bird which fall from the sky.
 * Intelligence: As "Makoto", Cereza is shown to be intelligent in both scientific research and literature, having written out proverbs at least thrice as the general manger of Aizen Tech.

Transformations
With Makoto Aizen as a medium, Cereza uses the Gyro and his sets of R/B Crystals to transform.

Trivia

 * Cereza possessing Makoto is quite similar to how Dark Zagi possessed Hajime Yamaoka. However, instead of making a new identity like Zagi did with Mitsuhiko Ishibori, he simply pretended to be Makoto.
 * His name may be based off a certain brand of wine.