Eden asked for both Cayron and Solomon because he needed both of them. First, Cayron was the headmaster of the academy. That means that he had a lot of power. And since he had a good influence, it would be perfect to talk about what is about to come with him. Then there's Solomon. He didn't know if Solomon was someone good or not, but from what he saw of him, he was leaning towards the former. And since Solomon was also someone really strong, he was sure that he would help. And since it seems that he had a certain interest in Eden, it was perfect.
When people were talking to people like the headmaster or Solomon, they were doing so with the utmost respect they had. Both of them were important people. They saved a lot of people in time of need and even defended Hydrel against the alien monsters that came from space.
So only by doing that, people were respecting them a lot. And when they heard a poor student calling them so casually like this, anger-filled them.