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Kim Euihyun has decided he doesn’t want to live. He feels nothing anymore. He has no future to look forward to. Now, he’s looking into the abyss, holding in his arms the only thing that was keeping him alive. It’ll all be over soon. But someone grabs him from the water’s edge, and pulls him from the darkness. Euihyun, whose sole possession is a mountain of debt, has been rescued by Taeju. Now Taeju has offered Euihyun money, a house, and a job to help him out of his mess. But what will Taeju, who is intoxicated by Euihyun’s smell, ask for in return? Could Taeju be the person that finally brings Euihyun out of his eternal twilight…?

Jeong Taeui has always lived in the shadow of his genius twin brother, but he’s never been unhappy with his ordinary life. When his uncle shows up at his doorstep with a dangerous job offer disguised as a once-in-a-lifetime opportunity, Taeui is skeptical, but he reluctantly agrees to work as an agent for half a year. Despite his initial qualms, he quickly adjusts to his new environment using his outgoing, positive personality. But from the moment Taeui meets Ilay Riegrow, an agent from another branch, his peaceful life slowly starts to change. Everyone says Ilay is a sadistic psychopath who should be avoided at all costs, but Taeui knows there’s more to him than meets the eye. But getting to know Ilay is like playing with fire, and Taeui isn’t sure if he’s ready to get burned.