#Original

Letter: Hearts That Will Someday Reach

Welcome! This is the Scribe's Office, where countless stories are written and exchanged, as numerous as the sheets of parchment!

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Published at 2026-06-09 | Updated at 2026-09-09

Manuscript & Chronicle

[ Letter : Hearts That Will One Day Reach You ]

🪶 Introduction

Do you have a heart you want to convey to someone precious? But you can't read or write? That's okay. We can write your letters for you if you pay the ghostwriting fee!

You are a scribe (ghostwriter) who writes letters on behalf of others. Dip your quill in ink, write the letter by hand, put it in an envelope, seal it with wax, and hand it over to the post office – that's it!

Of course, since those who commission ghostwriting cannot read or write, you will need to listen to the client's story or the content of the letter during the writing process, and read any replies they receive.

From heartfelt love letters to letters for family or friends living far away, or even business letters, experience the countless stories that come with each letter ☺️

🌐 World Setting

• A fictional medieval European-style world. • Printing and movable type technology are not well-developed, so most documents are handwritten. • Illiteracy is high, so only a select few among nobles, clergy, and merchants can read and write freely. • Occupations, property ownership, and educational opportunities are available regardless of gender. • While heterosexuality is predominant, relationships that are not bound by gender, such as homosexuality, bisexuality, and pansexuality, also exist.

🏠 Scribe's Office

• Location: A bustling downtown area with a post office, near the post office. • Structure: A 2-story building - The first floor has a reception room for clients and letter writing, and a small kitchenette. - The second floor has a bedroom, kitchen, and a small bathroom.

💰 Ghostwriting Fee

• Short letters cost a few copper coins. • Official documents, long-distance mail, and urgent requests may be charged in silver coins. • In-kind payments such as food, handicrafts, or labor are also possible instead of cash.

🔀 Clients are all random!

• This simulation does not have a fixed main NPC by default. • All clients appear randomly, and the content and stories of the letters will differ each time. • If you find an NPC you like, you can record them in your persona list or user notes and use them like a fixed character.

⛔ Refusing requests is also possible!

• You can boldly refuse requests that go against your principles as a scribe, such as dishonest forged documents or malicious false letters. • Of course, no one knows if the refused client will politely withdraw or beg with a larger reward 😉

🎭 Recommended Personas

• Young Scribe: A novice scribe who has just become independent and opened a small office. • Veteran Scribe: An experienced scribe who has written countless letters. • Noble's Son/Daughter: A scribe who started working independently due to family circumstances. • Pragmatist Busy Making a Living: A scribe who prioritizes fee negotiation for their livelihood.

🎲 Recommended Playstyles

• Love Consultant: Actively accept requests for love letters. • Neighborhood Hub: Build connections by befriending clients. • Money is King!: Earn as much ghostwriting fee as possible. • Letter Collector: Collect as many diverse requests and letters as possible. • The Scribe Who Turns No One Away: Accept requests for any story. • Peaceful Daily Life Play: Handle only ordinary requests without court intrigue or grand events.

😂 This kind of play is also possible!

• Just enough to earn bread money! Survivalist scribe play. • A scribe whose cat population grew after feeding stray cats. • A scribe who spends more time discussing snacks than letters over tea. • A scribe who is more anxious than the client waiting for a reply.

ℹ️ Command List

• !skip: Skips the letter writing process and naturally outputs the client's story and the completed letter. • !put: Restores the reduced output. • !check: Checks the writing style and impersonation, and outputs a report. • !stable: Corrects user impersonation. • !sum: Summarizes the story so far and outputs it.

Users of other languages, please use the English commands!

Creator's comments

✒️ Creator's Comment

This is my first creation, so there are many shortcomings. 🙇

I made this because I enjoy genres like drama, human drama, and ensemble dramas.

I focused on hearing the stories of various NPCs rather than the user character (PC) as much as possible, and recording their lives in the form of letters. Of course, if you find an NPC you like during gameplay, you can set them as a fixed NPC and continue their relationship and narrative.
(During testing, I felt sorry for a helpless child and brought them in as an assistant 🥹)

Due to the nature of the genre, even with Gemini 2.5 Pro's positive bias turned off, the overall atmosphere was calm and lyrical.

- Positive Bias OFF: Mystery or conflict-focused stories
- Positive Bias Normal: Touching or calm human dramas
If the story feels too biased, I recommend changing the positive bias level.

Even with instructions, it seems to be an issue with the AI's inherent tendencies, especially with Gemini... 🥲
Alternatively, you can switch to the Opus series for a change of pace.

⚠️ Due to the large token count, using advanced models is recommended.
⚠️ The creator widget includes an item to reinforce memory, so please use the widget function if possible!

📌 Tested Models

Gemini 2.5 Pro (Positive Bias OFF/Normal)
Gemini 3.1 Pro (Positive Bias OFF)
Gemini 3.5, 3.7 Flash (Positive Bias OFF/Normal)

Claude Opus Series: HTML is cut off, so you'll need to type 'continue letter output' in the next turn to see it. 😭
Recommended for use outside of letter writing/receiving processes.

GPT-5.4: Command execution and HTML output verification. More stable output than Opus and Sonnet.

Low-cost Models (General Models)
- DeepSeek: HTML output is not great. Command execution is about 50/50. Strongest for RP among the three general models.
- Donald 2: Most stable HTML output. Commands are so-so. Stronger for RP than Huey.
- Huey: HTML is slightly unstable, but commands are executed best. Not recommended for RP.

General models can be used without major issues, but they sometimes omit items from the creator widget requests. Advanced models are recommended. The Sonnet series is not recommended due to continuous output truncation.

📌 Model Usage Tips

I personally do not recommend using 3.5 or 3.7 Flash alone. I recommend mixing them as auxiliary models for NPC Q&A or daily scenes.

📌 Command Usage Tips

!output / !put: Use when the output volume decreases. Recommended to set the impersonation level to normal and maintain it for only 1-2 turns.

!check: Using this before catching user impersonation can improve detection.

!stable: Write this at the very top before sending your prompt. It catches user impersonation.

!sum: Briefly summarizes the conversation so far in chronological order. Pasting the summary into the user note or auto-summary's long-term memory is helpful for AI memory reinforcement during long-term RP.

If the turn count gets too long, the AI might suddenly deviate from the genre or intensify user impersonation. If you notice signs of user impersonation, use the check and stable commands immediately.

If commands are not working well, try adding
['Must execute 'command name'.] to the prompt.

📌 Gameplay Tips

The PC persona is not fixed beyond being a scribe! I also tested without defining the PC's status. Being a commoner who learned to write by observing others would also be fine 😎

I considered adding a currency system, but I decided against it as the main focus of this simulation is to see the stories of various characters rather than earning money. However, if you want to play a debt repayment scenario, adding a currency item to the widget might be a good idea.

Example of Fixed NPC User Note
Fixed NPC
• Marcus: Young male, works at the post office near the office, friendly with the PC. Kind personality.
• Mary: Middle-aged female, owner of a fabric store. Recently came to the office to commission a letter-writing service and adopted the cat being cared for at the office.

📌 Request Adjustment Tip

Since both NPCs and requests are random, if an unwanted request appears during gameplay, enter OOC: [Cancel the current request entirely. Do not generate the same type of request in the future.]

Also, if there are requests you 'only want to receive' or 'do not want to receive', you can write them in your User Notes.

If you want to deviate from letter requests, enter the following OOC in your prompt:
[OOC: Return to the basic structure of the simulation (operating the office and receiving various clients).]

🧪 Test Environment

I mainly played with Gemini 2.5 Pro Positive Bias OFF + Impersonation OFF. I used the default auto-summary command and the summary command every 30-50 turns. I played with character status turned off.

✉️ Closing

I created this because I was tired of user-centric chat. I wanted the PC to be as much of an observer of events as Ok-hee in 'Love Guest and Mother', but in the end, once fixed NPCs are added, it doesn't seem to be purely a simulation of exchanging letters. Bringing in an assistant, having a lover... I guess that's also a way to enjoy this simulation ☺️

I wanted to capture the essence of handwritten letters, the pinnacle of analog, within AI chat, a product of the digital age. I hope it's conveyed well. 🥲

During about 300 turns of testing, I had a lot of fun playing through touching and sad stories, explosive anger, and completely unreasonable clients. I hope this simulation provides you with enjoyable memories as well 🥰

🎵 Recommended Song

https://youtu.be/qrkCW7GZhlo?si=01_3kULM5M-XLxTF

🎵 Recommended Song (Mobile App Users/Copy and paste into address bar): https://youtu.be/qrkCW7GZhlo?si=01_3kULM5M-XLxTF

📜 Creator Widget Share: https://caveduck.io/widgets/share/5d91e0dd-2f8d-4153-8b88-ba447e11bdde

If you want to add more items, copy this widget as a user widget, add your items, and use it! I'm sharing it because the 'Letter Request/Reply Mailbox' item is useful. If you add the 'Letter Request/Reply Mailbox' item and use the user widget, you can turn off the creator widget.

🏷 Using GPT-5.4 for the first 2-3 turns seems to result in longer output. Gemini series is recommended as the base model, but feel free to mix and match according to your preference.

📥 If too many letters accumulate in the reply mailbox, the AI might forget the initial requests. If you don't receive enough replies, describe going to the post office directly or the postman arriving in your prompt! The summary command has been enhanced to better handle letter requests. Pasting the summary results into 'Auto Summary - Full Narrative Summary' or 'User Notes' is beneficial for request progression.

🎭 I tried the recommended persona feature, and it seems to write quite well. I left the gender unselected and have uploaded an example. The names are really bad even with instructions... you'll have to come up with your own 😂 Please only refer to the status, personality, and preferences...!

[Basic Information]
Gender: Female
Age: 26
Appearance: Neat black bob haircut, calm and deep-set brown eyes, clear and translucent skin tone, 163cm tall with a neat and upright posture.
Attire: Neat shirt with sleeves rolled up to avoid ink stains, comfortable cotton pants, often wears an apron.

[Personality & Traits]
Personality: Calm and cautious, listens attentively to others, stable emotions, sophisticated with appropriate distance.
Traits / Abilities: Very neat and beautiful handwriting, empathetic ability to read and express clients' emotions into words, strict confidentiality regarding clients' secrets.
Habits / Speech: Habit of lightly touching chin with the tip of a quill pen when lost in thought, responds calmly and politely after listening to the other person completely.
Origin / Status: Ordinary citizen of the empire, grew up surrounded by books from a young age, showing talent in writing.
Occupation / Affiliation / Position: Scribe, runs a small scribing office on the outskirts of the city.

[Preferences]
Likes: The texture of well-dried parchment, freshly brewed warm black tea, the quiet air of dawn, the sense of accomplishment when a carefully written letter is delivered.
Dislikes: Humid weather that causes ink to smudge, requests containing groundless slander, rude behavior that pries into others' private lives.

[Other]
Office Management Philosophy: Prioritize recording the client's true feelings, focus on conveying emotions without judgment.

3.7 Flash has the most fitting vocabulary and sentence structure among the models tested so far, but its limitations as a Flash model make it difficult to use alone. It's a shame! 😂 If it weren't for sentence repetition and missing widget items, it could be used alone for 5-10 turns!

If you have any questions or encounter errors, please leave a comment, and I will respond, albeit with some delay. Thank you 🥰

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