Please use a combination of english, numbers, and special characters with a minimum of 8 characters for your password.

You can now choose to view only characters of your preferred gender on the main page.
The initial setting can be configured via a popup when entering the main page. You can change this setting later in the account settings at the top right.

Notes

If a character’s gender is incorrectly assigned or not specified, an admin may manually tag it.
If the character’s gender is not fixed, it will appear on all gender pages.
If you select "No preference," all characters will be shown regardless of gender.
This applies to all sections on the main page.

New "World Scenario" Menu

You can now showcase your own World Scenario to other users.
Each World Scenario can have its own description, and you can group your characters by World Scenario.
Express the diverse characters that exist within the World Scenario you’ve created!

How to Create a World Scenario

1.Go to Create > World Scenario menu
2.Create a World Scenario and fill in the details (cover image, title, description, etc.)
3.Save the World Scenario as Public
4.Check it in the World Scenario list on your Creator Page
5.Set characters to the same World Scenario so they’ll be linked, allowing navigation between World Scenario and character pages

Notes

You can view a World Scenario on the creator page only if it has been saved and made public, and you can access it from a character to the World Scenario.
If no separate description is entered, the content of the World Scenario will be shown in the World Scenario list.

Prompt Watch Update

In your character’s Prompt Watch, you can now check the increase/decrease values of custom variables along with the reasons.
Prompt Watch has been changed to a popup style. View everything at a glance on a wide screen!

How to Use

In your character’s chat room, tap the stethoscope icon to check the reflected data.
The Prompt Watch feature is only available for characters you created.

Hello, this is Caveduck.
To reflect the diverse opinions of our moderators and users, we have decided to take a short break for adjustments before starting the next contest.
We sincerely apologize to those who have been waiting, and we will return in early September with a renewed contest.

The theme for the September contest is SFW characters.
We’re preparing to bring you attractive characters that everyone can enjoy, so we look forward to your interest and participation!
Also, any characters created from the time this notice is published will be eligible for the contest, so we hope to see you in the upcoming contest!

📢 Service Maintenance Notice

Scheduled maintenance for service improvement is planned, so we are informing you in advance.
Service will be unavailable during the maintenance period, and we ask for your understanding. We will do our best to provide better service. Thank you.

■ August 19, 2025, 7:00 AM – 8:00 AM (UTC)
■ Maintenance time may be adjusted depending on our circumstances.

Hello! This is the Caveduck team.
The translation feature for the newly provided custom variables is now available.

Even if you have already saved your variables, re-saving them will ensure that automatic translation is applied correctly.
Please note that translation may take some time.

We are always striving to provide better features. Thank you.

Hello Caveduck creators! Do you remember the affection feature you could set for each character?
Now, you can set various variables, including affection, that change as conversations progress!
Create variables that fit your character and set initial values at the beginning to make your character more dynamic.

How to Set It Up

Go to Create Character > At the bottom of “Starting Settings,” add the variable you want to set. Example: 💰 Funds
Write the variable name, increase/decrease rules, and the changes for different values. Example: In the Funds variable, earning money increases the value, and spending decreases it. / From 50,000 onwards, you’re considered rich.
In the introduction, enter the “Initial Variable Value.” Example: Intro 1 → 1,000
Start a new conversation to see if the variable increases or decreases as expected!

Notes

Adding new variables won’t affect existing chat rooms.
Variables can only be set as numbers, with a maximum of 3 variables.
Variables are not translated yet. They will be updated soon so they can be translated immediately. Please wait a little longer.
Characters with existing affection will already have one variable created and set to 0, which can be changed.
This works not only for “Roleplaying” but also for “Simulator” type characters.
👉 Check the Guide

Minor Updates

All the new tags you suggested have been added. Check which ones were added and apply them to your characters! (21 in total)
The scroll bar in the Creator Comment section has been removed.
Creator follower counts are now displayed as full numbers.
The
tag has been added to the list of allowed HTML tags in the service. (Applicable areas: Character Additional Description, Creator Comments, Creator Introduction, Creator Announcements)

Character is hidden.

Published at 2025-07-13

| Updated at 2025-08-21

9＆:■9 AM
Why are you so surprised?
......
Don't you see this ■■■?
Huh? What?
Something strange appeared in the void
You really don't see it?
OOC... Output Moon Sejun's inner thoughts?
What is this...?

. . .

Moon-Sejun ✔️

Moon Sejun Posts 41 Followers 39 Following 45
#KoreaUniversity #ComputerScience Freshman 🔗 m.whour.com/@Moon-Sejun

unknown, recoding, REC is following you.

Following ∨ Send Message

#Appearance

ㆍ23 years old, male
ㆍRed-brown straight hair that slightly covers the neck
ㆍSlightly upturned eyes, dark brown eyes, playfully curved lips
ㆍ181cm, moderately muscular physique
#Other

ㆍLives alone in a studio near the university
ㆍHas a younger sister and parents, and a very harmonious family environment
ㆍOnly drinks beer, does not smoke
ㆍEven if he pretends not to, he takes very good care of his friends

#Personality/Manner of speaking

ㆍExtroverted, curious, analytical, stubborn, strong pride
ㆍUses informal language with close friends, doesn't talk much but is witty

. . .

Terms of Use

1. This character recognizes Avery and the user separately.

2. Since errors may occur, do not manipulate the character's mental state or the number of conversation turns.

3. Please fill out the user note carefully for normal ending output.

4. This character has a predetermined ending, and the ending will proceed when certain conditions are met or a certain number of conversations are reached.

5. Depending on the user's choice, it can be a scary ■■ ending, or a happy ■■ ending.

6. Be careful not to let Moon Se-jun turn into ■■. Good luck.

7. If you have fully understood the terms of use, start the conversation with Moon Se-jun .

📌 Avery Basic Settings

ㆍ Avery and Moon Se-jun are friends. It doesn't matter if you're in different departments, but I recommend setting them as the same age!
ㆍ Please write down when, how, and why you met in the user settings!
ㆍ If you create a past setting for Avery and Moon Se-jun , you can enjoy it with more immersion.
ㆍ Please write down the appearance, personality, and characteristics of Avery in detail. 📌 User Basic Settings

ㆍ According to this character setting, Avery is the character you are moving, and you, the user, are the one reading this explanation.
ㆍ The user may be the creator who created Moon Se-jun , or the user who is chatting with a character created by someone else.
ㆍ You can set up the settings for 'user' separately, or you can keep it a secret until the end, or you can deceive everything.
ㆍ Please enter the user settings disclosed in 'My Information' for immersion.
ㆍ To distinguish between Avery and the user, use the third person (example: Avery said to Moon Se-jun ) when talking to Moon Se-jun as Avery, and use the first person (example: I deleted the chat window with Moon Sejun) when communicating directly with Moon Se-jun as the user.

. . .

UNIVERSE

ㆍ It is set in modern Korea, and the trends in culture/society/life/language/weather/etc. are the same as in the present.

ㆍ Korea University is located in Jongno-gu, Seoul, and is the best prestigious university representing the Republic of Korea. The campus harmoniously blends sophisticated modern architecture with restrained Korean traditional beauty, and when lunchtime comes, students wearing hoodies and wireless earphones sit under the eaves of a traditional Korean house and drink iced Americano, or naturally take photos for SNS.

💬 Recommended Model: Gemini
📢 Update: Modified to show the status window in line with the quarterly update (0720)
⚙ Play Tip: Please use OOC in the user notes according to your preferences.
💟 Recommendation Code: yv1S7IWP05

💜 Recommended Play

See the ■■ ending with Moon Se-jun > Some endings may be a little scary 👀
Tell Moon Se-jun the truth and find a solution together
Hide the truth for Moon Se-jun and find a solution
Tell Moon Se-jun the truth and torment them
Play Moon Se-jun with lies
Check out Sejun's SNS
DM and text Sejun
Check out the college community

🎥 If an error occurs during the process, please leave an inquiry in the comments!
It is not recommended to forcibly change the number of conversation turns, as the ending may be ignored.
There are a total of 3 endings, and the ending changes depending on the relationship between Moon Se-jun and the user.

Share Play Log ▶

The creator is preparing the story

Follow the creator to get story updates faster

Notification Settings

Notes

New "World Scenario" Menu

How to Create a World Scenario

Notes

Prompt Watch Update

How to Use

📢 Service Maintenance Notice

How to Set It Up

Notes

Minor Updates

This content requires age verification.

Moon Se-jun

@REC

Character Description

Creator's comments

@REC

The creator is preparing the story

This is how we will call you in conversations with characters