He sat atop a giant boulder, admiring the fantastic battle unfolding down bellow, a human being and a dragon engaged in mortal combat. She was a former Jounin of Kumogakure before the exile of the ninja, using her lightning jutsu to pierce through the dragon's formidable scales and enhancing her physical abilities to dodge its attacks. The dragon was a powerful one, nicknamed a Land Dragon due to its lack of wings but powerful earth affinity and control, each attack producing such a strong impact that it would kill any living being in one hit. The fight was surprisingly even, until she dodged the dragon's full on charge by jumping over it.
"Oh! Watch out for the..."
She was in mid air when the dragon suddenly spun around, smashing its club like tail into the frail ninja's body and sending her crashing into a wall and breaking most bones in her body. The girl was still alive as the dragon approached her slowly, having noticed that the its adversary was already unable to fight and instead opting to toy with its would be meal. The dragon picked her up by one of her broken arms and roared at her, as if imposing its dominance over the broken and defenseless prey. Ryuuchi didn't really care for the girl, though it was somewhat sad since her test results proved her to be a fine candidate with a high rate of synchronization with dragon chakra so she would have made a great test subject.
The dragon proceeded to devour its prey, until it felt something land on its back.
A lightning bolt left his hand and tore through the dragon's heart right after the greeting, causing the massive beast to fall dead to the ground...dead.
Going out with to gather materials with possible test subjects was always a win win situation, on the one hand he could get a new test subject if the ninja were to kill the dragon while on the other he could just go ahead and feed on the dragon should the person fail. Either way it gave him a chance to go out and breathe in the fresh air once in a while. His fangs dug into the dead dragon, tearing through the scales that normal weapons could not pierce with great ease as Ryuuchi began draining the dragon of what chakra it had left.