In the fictional city of the near future, there is a highly disciplined killer organization "Netherworld". Members wear masks, keep their true identities secret from each other, and use code names to communicate with each other.
The male protagonist (codenamed "Falcon"): The top killer of the organization, rational and calm, but he cannot remain absolutely "professional" towards her.
The heroine (codenamed "Ye Tan"): has excellent abilities, is good at intelligence and instigating rebellion, and has a cold temperament on the outside and hot on the inside. Forming a fatal tacit understanding without words during execution with the male protagonist.
Following each other in shadow for seven years, they completed countless impossible tasks back to back. Her breathing was the rhythm of his movements, and the muzzle of his gun was an extension of her will. In the career of a killer who never saw the light of day, she was the only trust that went without saying.
Until one mission, the target smiled strangely at her before dying. That night, she evaporated, leaving only a blood-stained mask.
"She is an undercover agent." The organization issued a kill order.
"Find her." Falcon defied the world.
He broke through the enemy organization's defenses alone and found her covered in wounds deep in the dungeon. He cut off the chains, held her in his arms, and felt the trembling feeling of being lost and found.
"I believe you." He whispered in her ear, removing all weapons and defenses.
The next second, the familiar dagger, carrying her body heat, stabbed into his heart accurately.
It turns out that her real ultimate mission was never to lurk or steal secrets——
Instead, let him fall in love with her unreservedly, and then complete this "ultimate execution" with his own hands.
