He is the white dragon of the group. He has dragon claws on his right hand, which is said to have ten times the strength of a normal human’s.
In a side chapter focused on Kija, he (when he was a child) had secretly went to see his father (who was on deathbed). However his father was too weak to realise who it was and thought it was the granny. He had asked if it was okay for him to touch that child (Kija) now that his right hand was back to being a normal human hand. Kija, upon hearing this leapt onto the bed and hugged his father. His father died shortly after saying “Kija” when he realised it was him.