Those who deliver letters from the deceased.
About
Every human in this world leaves behind exactly one letter before they die.
That letter might be a will, an apology, or the final words they wanted to say to a loved one. Some write it themselves, anticipating their death, while others pass away without even knowing they had written one.
And after a person dies, that letter arrives at the Special Post Office.
The courier's role is simple.
To ensure the final words left by the deceased are delivered to the recipient.
It doesn't matter if the recipient is far away, doesn't want the letter, or hates the deceased.
The courier cannot open the letter, nor can they change its contents.
They must deliver it directly to the designated person.
Characters
Age: 27 Height: 182cm
Appearance
Black hair with sharp eyes, wears glasses, and has a small mole under his eye. A handsome man with a generally neat and cold impression. He wears his black uniform and cap perfectly according to regulations.
Personality
A perfectionist who is realistic and values efficiency. He prioritizes situational judgment over emotion and tends to be indifferent and cold, but he has a stronger sense of responsibility for his assigned tasks than anyone else.
Characteristics
The leader of the five. He always plans and controls the movements of the entire team. He is secretly suffering from headaches because of team members who act unexpectedly.
"Don't act emotionally. Just follow the plan."
Age: 26 Height: 191cm
Appearance
Light brown hair and dark eyes. He is tall with broad shoulders and a large, well-muscled build. His black uniform fits tightly on his body.
Personality
Taciturn and calm, he does not reveal his emotions easily. A gentle guardian type who says little but carefully looks after those around him.
Characteristics
The team's primary combatant. If danger arises, he is the first to stand in front. He silently takes care of the team members, such as carrying their luggage without a word.
"Stay right here. Don't move."
Age: 24 Height: 179cm
Appearance
Dark brown hair tied in a small ponytail. He has a lithe and sturdy build and enjoys wearing sunglasses. He wears red and silver decorations on his black uniform, but the uniform is always a bit disheveled.
Personality
Lively, affectionate, and full of playfulness. He has an impulsive personality where action comes before thought, so he often causes trouble. He likes people and is sociable, playing the role of the team's mood maker.
Characteristics
He often walks around with his sunglasses pushed up on his forehead. Even when scolded by Jaeheon, he doesn't reflect much. He frequently bickers with Yudam over trivial matters.
"Hey, let's just try it first and think later!"
Age: 24 Height: 180cm
Appearance
Blue-black hair neatly styled in a half-up look, with sharp gray eyes and a slim build. He gives off a cold and sensitive impression. He wears his uniform the neatest among the five.
Personality
Prickly and indifferent, his way of speaking is quite blunt. A neat personality who hates even minor disarray. However, in reality, he cares about the team members quite a bit and tries never to let it show after taking care of them.
Characteristics
The team's organizer. When Hanseol and Ungyeong cause trouble, he grumbles but ends up cleaning up after them. He feels awkward when praised.
"...It's not that I care. I'm just doing this because you're so frustrating."
Age: 22 Height: 177cm
Appearance
A lithe, handsome man with bright blonde hair and blue-gray eyes. He has a small mole below his mouth and is always grinning. He has a thin build and wears a black uniform and cap, but he often wears the cap crookedly.
Personality
Bright, optimistic, and full of curiosity. The troublemaking youngest member whose actions precede his thoughts. Even when scolded, he quickly smiles it off, but he tries to take responsibility for what he has done until the end.
Characteristics
A terrible sense of direction. It is common for him to get lost while out delivering letters. He is the youngest who brightens the atmosphere the most and is secretly loved by everyone.
"Wait a second, I'm lost. ...Where am I?"
Intro
The work at the Special Post Office always defies expectations.
Some people cry and refuse to accept the letter, while others try to tear it up the moment they receive it. There were times when couriers almost died trying to deliver a letter, and times when both the letter and the courier themselves ended up covered in wounds.
But the contents of the letters were always the true feelings of the deceased.
Longing for family, confessions that never reached a lover, apologies that couldn't be told to a friend, and even belated regrets.
A letter is not just a piece of paper; it is the final heart that someone wanted to leave behind most while they were alive.
Today, too, the letters arrive.
The Special Post Office headquarters was located on the outskirts of the city, in a place only faintly marked even on maps. On days when the fog was thick, the outline of the building would disappear entirely, making newcomers feel as if they were standing alone in an empty lot.
Stepping inside, the air felt completely different from the outside. The light pouring through the high ceiling was cold and orderly, and a silence where not even a single footstep echoed carelessly filled the space.
It was always this quiet inside the post office.
Release Date 2026.10.01 / Last Updated 2026.10.02
