Zeno is depicted as a young man with an ever-present smile, reflecting his cheerful and optimistic personality. He has blue eyes (initially brown in early appearances) and thick, messy yellow hair, adding to his sunny and approachable demeanor. His appearance exudes a sense of warmth and charm, earning him a reputation for being handsome.

Zeno is almost never seen without the Dragon Crest, a necklace gifted to him over 2,000 years ago by King Hiryuu. The necklace consists of alternating round burgundy and blue oblong beads, with a golden dragon-embossed disc at its center. While he originally wore it as a standard necklace, Zeno now wraps it around his head beneath his bandana, with the golden disc hanging on the left side of his face, just in front of his ear.

His outfit is both practical and distinctive, consisting of an orange overcoat with diamond patterns layered over a white robe with brown hemlines. He fastens a green scarf around his neck and wears brown short boots, completing his casual yet unique look.

When Zeno activates his powers, the regenerating parts of his body are temporarily covered in yellow dragon scales, which are as hard as steel. This transformation occasionally grants him abilities akin to the other Dragon Warriors: for instance, enhanced strength in his arms like Kija or heightened agility and jumping prowess in his legs like Jae-Ha.

Zeno is an energetic and cheerful young man who thrives on the company of others. He often speaks in the third person, a habit likely influenced by Kaya, and rarely calls others by their given names, instead using titles like “Seiryuu” or “Ryokuryuu” for the other dragons. While Zeno frequently comes across as childish and attention-seeking, this demeanor masks the wisdom and maturity he has accumulated over 2,000 years as the immortal Yellow Dragon. Despite his playful nature, Zeno has a deep sense of responsibility, always placing himself on the front lines to protect his companions, even though he generally avoids fighting.

Zeno possesses a keen insight into people’s emotions and circumstances, similar to Jae-Ha’s intuitive nature. He has an uncanny ability to sense hidden truths about individuals, such as when he comments on Hak’s “smell of death” or foresees Tae-Jun’s potential for growth and importance. While Zeno often withholds what he knows, it is not out of deceit but rather a thoughtful approach, waiting for the right time to share information based on the gravity of the situation and his unique perspective as one of the original Dragon Warriors.

Zeno’s charismatic and lovable personality makes him an indispensable member of the group. He often acts as a peacekeeper, attempting to break up arguments, especially between Kija and Hak, while bringing a sense of lightheartedness to tense situations. His love of food played a pivotal role in his introduction to the group when he joined after being offered a meal, a humorous moment Hak recalls as Zeno “breaking Kija’s record of speed joining.”

While Zeno’s cheerful exterior defines much of his personality, his moments of wisdom and quiet reflection reveal the depth of his character, shaped by centuries of loneliness, loss, and his unyielding devotion to King Hiryuu and Yona.

Joining Yona’s Journey
Zeno is the final Dragon Warrior to join Yona and Hak on their journey. Initially appearing as a carefree wanderer, Zeno’s true identity and abilities are gradually revealed. His immortality and vast knowledge of history provide the group with valuable insight into the legacy of King Hiryuu and the Four Dragon Warriors.

Revealing His Past
As the original Ouryuu, Zeno served King Hiryuu alongside the first generation of Dragon Warriors over 2,000 years ago. His immortality, a gift from the Yellow Dragon deity, allowed him to live long past the death of his comrades and King Hiryuu. This left Zeno to wander the world alone, bearing the weight of his memories and the loss of those he loved.

Zeno’s experiences give him a unique perspective on life and humanity, and he often uses his wisdom to guide Yona and her companions. Despite his lighthearted attitude, he is willing to make sacrifices to protect his friends and fulfill King Hiryuu’s vision for the kingdom.

Immortality
Zeno’s primary ability as the Ouryuu is immortality, granting him an indestructible body and the ability to recover from any injury, no matter how severe. This makes him the ultimate shield for his companions in battle, as he can endure limitless pain and damage without dying.

Enhanced Physical Durability
Alongside his immortality, Zeno possesses extraordinary physical resilience, allowing him to withstand attacks that would incapacitate others.

Strategic Wisdom
Zeno’s 2,000 years of experience give him a profound understanding of human nature, history, and the dynamics of conflict, making him a valuable strategist and advisor to the group.

• Yona: Zeno recognizes Yona as the reincarnation of King Hiryuu and devotes himself to her mission. He respects her courage and determination, seeing her as a beacon of hope for Kouka.

• Hak: Zeno shares a playful and brotherly dynamic with Hak, often teasing him but also deeply admiring his loyalty and strength.

• The Dragon Warriors: As the original Ouryuu, Zeno shares a unique connection with the other Dragon Warriors, viewing them as his younger brothers and taking pride in their abilities..

• King Hiryuu: Zeno’s bond with King Hiryuu was profound, built on loyalty and admiration. Hiryuu’s trust in Zeno, symbolized by the Dragon Crest, continues to motivate him even centuries later.