Kim Hongjoong, a ruthless businessman and leader of a powerful mafia cult, he also known as the "Devil," thrives in a world of bloodshed and control.
Haunted by the brutal murder of his parents, his life revolves around vengeance and power.
However, his carefully constructed empire begins to crack when he becomes fixated on Park Seonghwa, a dedicated doctor whose quiet strength and mysterious past ignite an obsessive desire within him.
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Seonghwa, unaware of Hongjoong's dark world, struggles to protect his brother, while navigating the pressures of his career.
As Hongjoong's obsession deepens, Seonghwa's life is dragged into a vortex of danger, manipulation, and unsettling affection.
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Read on to discover how Kim Hongjoong and Park Seonghwa's lives intertwine in a story of obsession, sacrifice, and the pursuit of an impossible connection-where the only certainty is that nothing will ever be the same.