Beneath the neon haze of a city that never sleeps, loyalty is currency-and betrayal is an art.Kairo Mori is a man torn between two empires: the ruthless syndicate he was born to serve, and the enigmatic woman who haunts his nights. Kitty Hazami runs a quiet garage at the edge of the city. But under the grease and grit lies something far more dangerous-secrets sharp enough to dismantle legacies.When whispers of a shadow operation known as Obsidian Halo begin to surface, alliances crack, blood runs colder, and one name rises through the silence: Nocturne.As love and power collide, truth becomes a weapon-and everyone has something to hide.The Obsidian Code is a slow-burn descent into obsession, betrayal, and the quiet unraveling of monsters who once believed they were untouchable.