The Disappeared Undercover

Deep in the tiger's den, batch after batch of experienced undercover officers mysteriously disappeared into foreign lands. Is it betrayal? Or betrayal? Is it death? Or sink? … I am Yan Dong, one of the missing 'mountain hawks' group. From the moment the 'Mountain Eagle' was obliterated, I was already 'dead' in this world. Being betrayed again and again, sinking step by step, that is the way I came, and it is also the way I go home.