Unu

The Unu were a group of sentient species originating from the galaxy as deciphered from the Star Wars' Expanded Universe. The groups made of these species are known as Thrella Concord Assembly, who controlled the Thrella sector. As per the information obtained through the reference in numerous sources, the Unu were locals to the celestial society and the inferences of their existence primarily lie through historical records.

The Unu culture and society were often viewed as being enigmatic and difficult to understand by outsiders. They were known for their secretive nature, which extended to their relationships with other cultures and races. Despite this inscrutable nature, the Unu were recognized as one of the key species of the Star Wars universe.

The Unu did not have a significant presence in the Star Wars series, their part mostly being limited to the franchise’s Expanded Universe. However, they wielded substantial influence in their own sector - the Thrella, which they presided over as part of the Thrella Concord Assembly. The Assembly was an economic and political organization, suggesting the Unu were sophisticated in terms of social institutions.

The information about their physical appearance, unique traits or abilities is yet to be explicitly detailed in any Star Wars canon or other mediums. Although they are rarely talked about, they have a place in the Star Wars universe, hinting at the expansive nature of Star Wars lore, featuring numerous lesser-known species and civilizations like Unu that enrich its depth and context.

As Star Wars continues to expand its universe, it's possible that more focus will be given to these smaller races and cultures, such as the Unu. This would allow fans a greater understanding of the complex and varied forms of life that populate the vast galaxy far, far away.