Indigo

Kyou saw the beauty in what his parents did, but had no interest in partaking. When they would perform at nights he would move as far away as he dared and gaze up at the sky. Night after night he charted the stars, keeping track of their positions and naming things that were otherwise unknown to him.

During one of their stops, an old wizened dragon approached Kyou and offered to teach him everything he knew about the heavens if he agreed to come away with him. His desire to know more was too great and he agreed, disappearing with him into the night. He kept his word and taught Kyou everything he knew about the stars and planets. Upon his passing, he set off again in search of a clan that wanted to know more about astronomy.

Kyou is a little naive. He doesn't know for sure that anything she learned is true, but he takes it on faith. He wants to believe it is true, so for him it is. He is the same way with dragons and it often gets him into trouble. If something sounds plausible, he is likely to believe it.