BackgroundTwo thousand years ago, Z

Background

Two thousand years ago, Zeno was just an ordinary kid who could hear the voice of God like Ik-Soo. When Ouryuu descended from the heavens to look for a human who can be his other half, Zeno decided to take in the dragon’s blood in a wish to make the world a better place and for everyone to be happy.[9] Since then, he has stopped aging and no longer hears the voice of God.[10]

He joined Gu-En, Abi and Shu-Ten, who were the Hakuryuu, Seiryuu and Ryokuryuu, respectively. During the conflict in Kouka, the four of them protected King Hiryuu. One time, the other dragon warriors became curious of Zeno's powers and he showed them how he is able to regenerate fast. When he showed it to King Hiryuu, he was hugged by him and was given a dragon crest. Several days after, he became worried about the nature of his power and he asked the king about it. However, the answer to his question remained a mystery as King Hiryuu died.

After the death of the king, he appointed himself as the "Priest" –with the dragon crest proving his authority– and chose to stay behind when his dragon brothers were leaving.[11] Before the three departed, they shared a hug as Gu-En told them how they were all connected and how they will return to the heaven someday. However, Zeno at the time had come to learn about his power and thought that he could no longer return anywhere.[12] During the time he was a priest, he solved the dangers coming to the country on his own.[13] Twenty years later, he sensed the fleeting life of Gu-En and he became depressed as he pleaded with King Hiryuu and his dragon brothers to not leave him behind.

Unlike the three original dragons, he did not establish a village of his own.[14] He had left the village he was born in, but he notes that it is still exists though it looks different than it used to. Since he was stuck in his immortal body and did not have a village he belonged to, he traveled around a lot and waited for King Hiryuu's reincarnation. At some point in his life, Zeno was married to Kaya, a girl living on the outskirts of a certain village, she died at an early age due to an incurable disease.

Synopsis

Zeno is the last person to join the group, where he wondered in when he smelled the scent of raw food. He then told Yona while praying for the butchered animal that all living things will go back to heaven and that the animal will forgive her. He introduced himself as a wondering adventurer. Due to his grumbling stomach and hunger, he was invited to have lunch with the group.The other three dragons had already suspected Zeno is Ouryuu and he confirms that it is him. Everyone starts asking him questions, and is asked by Kija if he feels anything when he looks at Yona, to which he simply answers that she is a cute girl, surprising the dragons who expected him to go through the awaking . He then accepted Yona's request to join the group, with others noting that he was the fastest person to join the group. Kija introduces himself to Zeno, and asks him what his power is. Zeno replies that he has a sturdy body, to which Hak is quick to test by punching Zeno. He is sent flying, and is visibly hurt, causing the others to question Zeno's power as Ouryuu. Despite the others' suspicions, Yona deeply believes that Zeno is Ouryuu.

Later, Zeno offers to help Yona carry the wood, which turns out to be too heavy for him. As both of them keep walking, Yona claims that despite their first meeting, Zeno feels cheerful, different from ordinary people like a warm ray of sunshine, and just being by him, her mood brightens up. She formally introduces herself and welcomes him to the group. After helping Yona, he thanks the heavens and comments that the moon looks pretty.