Fascinating

Ryu sat on Lu'card's back and seemed to forget the world. The Spatial Dragon's grumbling went in through one ear and out through the other. As far as Ryu was concerned, he was already hitched to this wagon and there was no getting out now. 

Inwardly, Ryu couldn't help but chuckle. That was because he knew that Lu'card was exceptionally curious about how he had healed him instantly like that, but he was also far too prideful to ask. 

As much as he was grumbling about Ryu's tricks and schemes, if he was really so pissed off, he would have left on his own a long time ago. Ryu was just giving him convenient excuses to stay so that he would be able to save some face. 

Ryu did want Lu'card as a mount, but he also realized that it was nigh impossible to get the latter to agree to something like that. And honestly, he had only used such a term to goad Lu'card into action. He was much more curious about other things. 

Lu'card was a fascinating case.