Raeve is an assassin for the Fíur du Ath resistance group with a sarcastic wit and a fierce dedication to protecting the vulnerable. She suffers from extensive memory loss regarding her past and masks her elemental abilities to pose as a nonmagical null. In parallel diary entries, Elluin Neván is a young Princess of The Shade who secures her own Moonplume dragon at an early age. Raeve avoids emotional attachments to protect herself from the pain of vulnerability.

Kaan is the King of The Burn and a warrior who rides a massive Sabersythe dragon. Despite his fearsome reputation and the cruelty of his family, he rules his kingdom benevolently and values fairness. He bears extensive tattoos and scars from his violent upbringing and battles. He possesses a mysterious connection to Raeve and treats her with unexpected tenderness.

Veya is Kaan's sister and a member of the Vaegor royal family. She possesses a fiery temperament and harbors intense hatred for her cruel father and brothers. Her back is heavily scarred from a harsh punishment inflicted by her family, fueling her desire to help Kaan overthrow them.

Kyzari is the Princess of The Shade who wears the Aether Stone on a diadem permanently fixed to her brow. The stone houses the trapped essence of a Creator god, taking a physical toll on her frail body. She lives an isolated royal life under Tyroth's rule but seeks a way to remove the diadem and free the entity inside.

Essi is a young woman rescued from an oppressive life in the Undercity by Raeve. She crafts magical items, including protective jewelry, to aid Raeve in her dangerous line of work. Essi deeply cares for her roommate, though she struggles with Raeve's emotional distance.

Rekk is a brutal bounty hunter tasked with dismantling the Fíur du Ath resistance group. He uses ruthless tactics to draw out his targets, showing no empathy for the innocent people he harms in the process. He later serves as an emissary for The Shade.

Haedeon is Elluin's gentle older brother. He lacks elemental magic and sustains severe, permanent injuries during an expedition to bond with a dragon. He relies heavily on his sister's care and emotional support following his accident.

Ostern is the former King of The Burn and the patriarch of the Vaegor family. He is a cruel, manipulative ruler who orchestrates political marriages and uses blackmail to control those around him, including the royal family of The Shade.

Tyroth is one of Kaan's brothers and a ruler within the Vaegor dynasty. He governs with a cruel hand and actively participates in the abuse of his sister, Veya. He is politically positioned to take over Elluin's kingdom through a forced marriage.

Sereme is a handler for the Fíur du Ath resistance group. She uses a silver vial of Raeve's blood to exert control over the assassin. She prioritizes the rebellion's political goals over the safety and well-being of her individual operatives.

Slátra is a Moonplume dragon bonded to Elluin since childhood. She is fiercely loyal to her rider, enduring severe burns from the sun to follow Elluin into dangerous territories where her species normally cannot survive.

Rygun is a massive Sabersythe dragon bonded to King Kaan. He shares a rare, intense connection with Kaan that allows the king to harness the dragon's strength and fire. Rygun is ferociously protective of his rider.

Tarik is a wealthy predator who runs a fighting establishment using kidnapped, nonmagical children. He serves as Raeve's assassination target during her mission to dismantle his operation.

Arkyn, known as The Scavenger King, runs underground fighting pits. He previously enslaved Raeve, forcing her to brawl in cages under the moniker Fire Lark. He harbors ambitions to seize the bronze throne of The Burn.

Pyrok is a member of Kaan's Imperial Court in Dhomm. He serves as an escort and guide for Raeve when she explores the city, familiarizing her with the local currency and customs.

Caelis is one of the five original Creators of the world. Blamed for devastating moonfalls, his essence was split and trapped within the Aether Stone. He exists in a state of mournful solitude, communicating only with the individual who wears his stone.