Kye, unlike other youngsters that they had met during their lives, was very grateful. He didn't want to take things from them without paying them back. Even when they were doing that out of the goddess of their heart. And they were very glad that he was like this because an ungrateful brat always dies miserably. And since both of them liked Kye quite a bit already, they didn't want such a fate to behold upon him. They probably wouldn't cry if he were to die since they were didn't met for long, but they will still be sad.
And the only reason for that is because Kye's personality is very likable. Even without his angel's energy interfering, it was easy for people to appreciate him if they were to surpass their beliefs regarding levels. That is also why he had now so many friends. Sure his energy played a big part in that regard since they liked him way faster than in normal situations. Nonetheless, it would have only been a matter of time.