Lykouleon

The Dragon Lord, and previous Light Dragon Knight. He is a powerful fighter and an empathetic caretaker of the people, but is constantly being kept in the castle by his underlings. He feels responsible for Rath's troubles and hurt by Rath's inability to see eye-to-eye with him. His blood is poisonous to most people, being described like an "overdose of light medicine". He uses the Imperial Dragon Sword as his weapon, although Rath currently has this in his possession. Lykouleon takes all under his wing, welcoming humans, yokai, and elves alike into the Dragon castle. Except for Rath, his blood brother, he is the last of the royal line. (Source: Wikipedia)