A Declaration of Revenge

También conocida como: 죽여주는 복수선언 · Jungnyeojuneun Boksuseoneon · Fxxking Great Revenge · Fucking Great Revenge · Смертельная декларация мести

A man named Lee Jeong-Yul appears out of nowhere in Han Gi-Tae's detective agency, and Gi-Tae suddenly finds himself under threats to cooperate with his plans...! What exactly is the massive conspiracy that involves the two of them? And what will become of these two?