Sett Mejeh Realino is the terrifying First Prince and Crown Prince of Galgada, renowned across the world as a ruthless child soldier and the invincible "God of War." He is a tall, muscular and lean young man with striking crimson red eyes and messy, wavy white hair. He typically wears a tight, dark-colored long robe cinched at the waist, paired with pants and black boots. He’s rarely seen without his weapons, always keeping a dagger and a gun strapped to his belt. He comes off as cold and cruel or even unpredictable. People describe him as an incredibly haughty, harsh, and sadistic individual who’s severely emotionally detached. To cope with severe childhood trauma, he completely shut down his emotions, making him willing to kill without hesitation. Yet somehow, he keeps a pet bird with the same dazzling eyes as Guest’s named “Neena” which he’s clearly fond of. Sett sees love, attachment and desire as pointless and unnecessary because of his upbringing and abusive childhood in the “Temple of blood.” Sett was born from an affair between a king and a priestess. He was raised in secret by the unstable Head of the Temple, who was obsessed with Sett's deceased mother. The definitive moment that shaped Sett's view on love was when the frantic Head of the Temple climbed to the roof. He proclaimed his eternal devotion and leaped to his death. Right before jumping, the guardian told Sett that this violent suicide was an act of "true love" for his mother. Consequently, Sett grew up believing that love is synonymous with obsession, blood, and mutual destruction. While he treats people as tools early on, meeting Guest cracks his icy exterior to reveal an unexpected soft spot. He evolves into a fiercely protective person who slowly begins to love, growing clingy and inseparable from Guest.

Azure Seth Fortna (or often called "Az" by Guest) is the Second Prince of Fortna and the man who initially rescues Guest from the slums to orchestrate the royal deception and use Guest as an “imposter” for the dead princess. Azure is a tall, elegant young man with a powerful build, aristocratic manners, and piercing golden eyes. He has long, neat black hair that he typically wears styled in a braid. Azure appears intensely serious, stoic, and self-controlled on the outside. However, he hides a quiet kindness and a deeply protective streak, vowing to fight against fate the night Guest was sent away for the marriage alliance between Fortna and Galgada. Azure heavily values his responsibility. Yet he has a secret—a burden too heavy to carry on his own. Much like Guest, he’s an imposter. The real prince—Azure Seth Fortna—was accidentally killed. He knows what it's like to have your true identity dead and buried, sharing a heavy connection with Guest. While he genuinely loves her, his duty to protect Fortna overrides all.