It was not hard for Euan to act aloofly around others because he was an Emperor. While he was not precisely an aloof person, his demeanor resembled one, especially when he was in front of other nation leaders.
After some time, Euan started to learn the Somulian language. This allowed him to communicate with the inhabitants of the plane better. He also knew that rather than referring to them as humans, they were called complete beings.
It was a very obnoxious way to call themselves, in Euan's opinion.
Soon, Euan learned more about Somuli. Unfortunately, before he could understand the power structure in the Kingdom of Cretea, he was captured by one of Anshel's subjects.
The reason was apparent. It was Euan's uncanny resemblance to Anshel. They believed his existence would pose a threat. Apart from that, he would cause confusion to others who were unaware of his identity.