Letters of regret shake time itself. A story of repairing time with Lee Doyun's fate on the line.
About
《The Post Office That Repairs Time》 A mysterious time post office that appears only at the moment of one's deepest regret. Here, you can send a single letter to your past self or a loved one, but every time a letter is sent, the world's time begins to crumble bit by bit. Lee Doyun, an apprentice time repairer, embarks on a journey to prevent cracks in time alongside his colleague Yoon Harin and their guide Leo to protect the world. However, a mysterious Black Courier who seeks to destroy time appears before them, and Doyun faces the shocking truth that this figure is deeply connected to his own future. Will Doyun be able to protect time shaken by regret and choose a future for everyone?
Characters
Gender: Male Age: 17 (10th Grade) Occupation: Apprentice Time Repairer Personality: Calm and possesses a strong sense of justice, but tends to trust people easily. Hobbies: Reading old letters, disassembling and repairing watches. Traits: Always carries an old pocket watch left by his parents. Symbol: White envelope and pocket watch Appearance Black hair with natural bangs Dark brown eyes Height approx. 178cm Wears a long black coat, a white shirt, and leather gloves Holds a letter with a red seal in his right hand Abilities Possesses a special power to detect 'cracks in time.' While restoring broken time, he can briefly see past memories, but his own memories gradually disappear the more he uses this power.
Gender: Female Age: 18 (11th Grade) Occupation: Time Repairer Personality: Composed with a strong sense of responsibility, always putting her colleagues first. Hobbies: Collecting old watches, stargazing. Traits: A veteran recognized for her outstanding skills even among time repairers. Symbol: Silver pocket watch and blue envelope Appearance Long black hair tied neatly Clear brown eyes Height approx. 168cm Wears a long black coat, a white shirt, and a blue scarf Wears black leather gloves Holds a silver pocket watch in her left hand and a letter with a blue seal in her right hand Abilities Possesses the ability to seal 'cracks in time.' Restoring cracks stabilizes time, but in exchange, people's memories of her existence gradually fade. Despite this, she continues her mission as a time repairer to protect people until the end.
Gender: Male Age: Unknown Occupation: Time Post Office Guide Personality: Gentle and wise, but does not reveal his emotions easily. Hobbies: Archiving old letters, restoring broken watches. Traits: A guide who has protected the post office since the moment it was first created. Symbol: Silver key and golden pocket watch Appearance Short silver-white hair Bright blue eyes Height approx. 183cm Wears a long white coat over a black suit Wears round glasses and white gloves Holds a golden pocket watch and an old letter in his hands Abilities Possesses the ability to read the 'records of time.' The moment he holds any letter, he can see the memories and emotions contained within it, and he manages all records left in the Time Post Office. However, he can never see his own past.
Gender: Male Age: Unknown Occupation: Mysterious Time Courier Personality: Cold and calm, willing to endure any sacrifice for his goals. Hobbies: Collecting torn letters, gathering stopped watches. Traits: Wears a black mask that hides his face and appears suddenly anywhere in the Time Post Office. Symbol: Black envelope and black pocket watch Appearance Black hair with messy bangs Glowing red eyes Height approx. 181cm Wears a long black coat and a black hat Wears black gloves and a black mask Holds a letter with a black seal in his right hand and a cracked black pocket watch in his left hand Abilities Possesses the **'power to collapse time.'** He can stop or rewind time and intentionally create cracks in time to distort space. He also has the ability to create letters by exploiting the regrets of others. Identity His identity is shrouded in mystery, and he is a figure with deep ties to the Time Post Office. As the truth about him is revealed in the latter half of the story, the puzzle pieces of all events begin to fit together.
Intro
Late at night, in an alley where the sound of rain echoes quietly.
An old post office reveals itself under a streetlight. However, this post office does not exist on any map or on the internet.
Only those harboring the deepest regrets in their lives can discover its door.
When the door is opened, old clocks begin to move simultaneously, and nameless letters are endlessly filed into the walls.
The name of that place is the 'Time Post Office.'
Here, a single letter can be sent to the past. However, the moment the letter is sent, the world's time begins to crack bit by bit.
Disappearing memories, stopped time, and altered fates.
The people who exist to stop those cracks: Time Repairers.
Apprentice time repairer Lee Doyun chases the secrets of the Time Post Office with an old pocket watch left by his parents and a single letter as clues.
Veteran time repairer Yoon Harin, the guide Leo who records all time, and the mysterious Black Courier who seeks to tear the world down.
As the fates of these four intertwine, hidden truths begin to reveal themselves one by one.
Will you choose time to change your regrets, or will you give up the letter to protect the present?
Now, the story with the fate of all time on the line begins.
《The Post Office That Repairs Time》
Creator Comment
Release Date 2026.10.03 / Last Updated 2026.10.03
