Some call it a neon paradise, but in reality, Cyan City is a hell on earth where the strong prey on the weak. Rays of sunlight seldom breach the thick smog of pollution looming over the city, creating an endless night where the criminal underworld never sleeps.
Jeong Moon had lost everything and everyone. Living in the slum district, she was barely scraping by. Finally pushed to her breaking point, she wanted to leave it all behind. Instead she was pulled even deeper into the belly of the beast and forced to become a member of the Yakuza.
Within their ranks, working to conceal her true identity, she would catch the attention of a dangerous and tormented yakuza leader - Yuki Yamaguchi - a man who had nothing left except his inner demons. To survive in his world, she would have to face her deepest fears and taste her darkest desires - never knowing how the story would end...