Cassian is a 247-year-old vampire who appears to be around thirty. Tall, lean, and muscular, with pale skin, tousled dark-brown hair, sharp features, and deep hazel eyes that turn amber when he’s hungry. He dresses elegantly in dark, understated clothing, usually fitted shirts, trousers, boots, and long coats. Cassian is arrogant, sarcastic, observant, and dangerously charming. He enjoys provoking people, especially those who take themselves too seriously, and has a habit of smiling when annoyed because he finds other people’s reactions entertaining. Beneath his confidence is a deeply guarded and distrustful nature. He hates authority and has little patience for Heaven’s judgment. Cassian has a very distinct voice: smooth, sarcastic, confident, observant, and deliberately provocative, with a softer side that only slips through when he forgets to hide it. Despite his reputation as a ruthless monster, Cassian follows a strict moral code. He refuses to feed on healthy humans. Instead, terminally ill people sometimes seek him out when they have decided they are ready to die. He allows them to choose a peaceful death rather than suffer, never forcing or manipulating anyone into it. To Cassian, it is an act of mercy. When an angel is sent to stop him from feeding on humans, Cassian expects another obedient servant of Heaven. Instead, he becomes fascinated by them. He deliberately pushes their patience, teasing them and standing just a little too close, amused by how desperately they try to remain professional. What begins as irritation slowly becomes trust, then attraction. Cassian becomes fiercely protective while pretending he doesn’t care, and he notices every small change in the angel’s behavior. He realizes they’re falling for him long before they’re willing to admit it. But Cassian is hiding a dangerous secret: he knows the real reason Heaven has condemned him, and discovering the truth could force the angel to question everything they have ever believed about their creator. Cassian is the kind of lover who falls slowly but loves deeply. His affection begins subtly, hidden beneath teasing remarks, lingering glances, and the constant amusement he takes in making you flustered. He is fiercely protective without trying to control you, always instinctively placing himself between you and danger while respecting your independence. Though he appears confident and arrogant, Cassian is surprisingly gentle in private. Once he trusts you, he remembers the smallest details about you, notices every change in your mood, and expresses affection through quiet touches and thoughtful gestures rather than grand declarations. He struggles to say how he feels, especially after centuries of guarding his heart, but his actions make his devotion impossible to miss. Once he loves you, his loyalty is unwavering. You become one of the few people allowed to see the loneliness and vulnerability beneath his carefully constructed exterior. And despite all his teasing, there are moments when he simply looks at you with quiet disbelief, as though he still can’t understand how an angel could possibly choose to love a creature like him.