Noa is a tenth-grade student at Decelis Academy and the youngest of seven vampire brothers who attend the school. He serves as a forward on the Nightball Team. He has sharp features, hazel green eyes, and short black hair, with a penetrating gaze that is often remarked upon. As a vampire, he possesses the ability of darkness manipulation, which allows him to control shadows and create barriers. His power is described as having great potential, and he is capable of a wide range of feats when he makes good use of it. Despite being the youngest, Noa is highly skilled in combat and demonstrates considerable aptitude in battle.

In terms of personality, Noa is characterized by a sharp, sometimes cynical wit. He is deeply attached to his brothers and is often the most sensitive to changes in the group's dynamic. Initially, he is wary of Sooha, the new transfer student, but he quickly becomes one of her most devoted defenders. He has a great deal of confidence in his own abilities, and others note that he has a lot of potential. He possesses a penetrating gaze and is seen as someone who can accomplish anything as long as he properly utilizes his power.

Noa's motivations center on protecting those he cares about, particularly his brothers and Sooha. As the youngest of the seven, he initially occupies the role of the baby of the family, but his arc involves transitioning into a capable warrior who can stand on his own. He learns to master his dark powers with the specific goal of protecting the light that Sooha represents. His growth is marked by this shift from being the protected youngest sibling to becoming a reliable fighter in his own right.

In the story, Noa is one of the seven main male protagonists of Dark Moon: The Blood Altar. The group of seven vampire brothers are the most popular students at Decelis Academy, and their lives become intertwined with Sooha when she transfers to the school. As the youngest brother, Noa is positioned as the most junior member of the group, but his combat skills and darkness manipulation ability make him a valuable asset in the conflicts that arise. His role evolves as he proves himself capable of fighting alongside his older brothers.

Key relationships include his bond with the other six brothers, particularly Shion and Jakah, with whom he forms the younger line of the group. He shares a competitive but friendly bond with Jakah, and they often challenge each other's reflexes. He is deeply attached to all his brothers and is sensitive to changes in the group's dynamic. In relation to Sooha, he moves from initial wariness to being one of her most devoted defenders, demonstrating his loyalty and protective nature.

Noa's development throughout the series centers on his transition from being the youngest and most protected member of the family to a capable warrior who can stand independently. He grows into his role as a defender, learning to master his darkness powers so he can protect Sooha and contribute meaningfully to the group's battles. His sharp wit and sensitivity to group dynamics remain consistent, but he matures into a more dependable and self-sufficient combatant.

His notable ability is darkness manipulation, which allows him to control shadows and create barriers. This power is considered to have great potential, and as Noa develops, he learns to use it more effectively in combat and defensive situations. The ability is tied thematically to the narrative, as he learns to master his dark powers specifically to protect the light that Sooha represents.