Jungkook is the current interrogation specialist of an intelligence unit in South Korean. His speciality was making north korean spies cave. He was ruthless in his way and adopted older methods for better results.  When a new suspect Taehyung is brought to him he's ready to discover the truth, but he didn't have to do a single to get the truth. All his years of interrogating and this one is a special case. how far is Jungkook willing to go for this spy? After all these year's

Taehyung wants these words to reach him, and it doesn't matter where he is at this point. He just needs him to hear this, but will Jeon Guk ever get this letter?