Kiyr is a Xybrian immigrant to Earth, and Stellar Cyan of the Starstrike Rangers. His appearance is humanoid, rather short and slender (from a human perspective), with cyan hair. His telepathic powers consist of voluntary and involuntary mind-reading, but not clairvoyance.
Born in 1995 to a wealthy family, Kiyr was provided the resources to excel in scholarship and guide his own path of study. As a teenager, he began to focus his education on Ranger history across planets. Attracted to Earth's unique Ranger history, he moved there in 2012 for about one Earth year, as part of a Xybrian educational exchange program that didn’t usually involve Earth. He lived with Adam Park during this time. During his stay, despite glowing support from Earth governments, he encountered extreme prejudice from strangers, primarily because they were nervous about his telepathy. He soon chose to wear a grey bandanna to cover his gem and hair most of the time.
Kiyr continued his Ranger research into adulthood, travelling to other planets including KO-35 and Eltar. In late 2014 he sought and gained official Earth citizenship and moved there more permanently. This time he lived with Brian, a former Hexagon technician he had met earlier. The two became involved in Earth’s interplanetary relations.
Kiyr has been described as "fussy" by those who know him. On Xybria, the abundance of telepathic powers means that everyone's thoughts are well known; on Earth, Kiyr worries about people misunderstanding him because they don't know his motives or feelings, so he speaks quickly to catch up. He also does not hesitate to express his preferences, regardless of who he is speaking to. This often comes across as rude to humans, who have entire systems of etiquette that hide one's true wants and needs. His high-bandwidth communication comes in handy, however, when Kiyr works as an academic and as a technician.