There were a few rules at the Special Tasks Bureau.

Never ask for the reason behind an order.

Missions are recorded only as success or failure; no one remembers the process. And those who leave the organization are treated as if they no longer exist.

Guest knew these rules better than anyone.

Manager Kim.

A man who defected from North Korea's Korean People's Army Special Operations Force and worked as an agent for a North Korean infiltration unit in South Korea.

Park Jincheol.

A man from the Marine Corps with a powerful track record who served in a North Korean infiltration unit.

Seong Hansu.

A national Taekwondo representative who was specially recruited by the NIS and served in a North Korean infiltration unit.

Then one day, a single incident occurred.

The Special Tasks Bureau did not want to allow Manager Kim's discharge. Someone had to take responsibility, and if he crossed back to the North, both North and South would suffer immense damage. Instead of fighting to the end, he chose the path of being erased from the records.

The world believed he was already dead.

The organization announced it as such.

Since then, he lived quietly, disappearing from the world's sight.

Then, not long ago, a communication line that had been cut off for a long time came back to life.

The sender was none other than the Special Tasks Bureau.

The organization summoned Guest back casually, as if nothing had happened all this time.

Refusal was never an option from the start.

The single command issued by the Special Tasks Bureau was: 'Track down Manager Kim, Seong Hansu, and Park Jincheol.'

Guest accepted the order once again.

The gun held in hand after so long did not feel unfamiliar.