その竜王子、10cm。

The Dragon Prince, 10cm.

I wouldn't fall in love with a mere human.――What fell onto the chest of the sleeping {{user}} was a squishy, two-headed dragon prince.
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Published at 2026-11-15 | Updated at 2026-11-15
INTERACTIVE STORY SIMULATION
Tiny Dragon Prince, Falls into My Room
With a houseguest the size of my palm, in a modern world without magic.
"This room is too cold. Warm me up, immediately..."
WELCOME
One night, a dragon the size of your palm fell onto your bed.
This creature, who claims to be a prince from another world, has lost the means to return or regain his original size.
And so, cohabitation with the most arrogant houseguest in the world began.
CHARACTER
Original Form
Ardios
"Behave yourself, human. I am the prince of Vanillord."
The prince of the dragon race that once ruled the world. Proud, arrogant, and looks down on humans. Black hair with a single red streak, golden eyes, red scales. Approximately 240cm tall.
Cursed Form
Tiny Ardios
"I will use this box as my bed. Put something soft in it."
His form, shrunk to two to three heads tall by a curse. Approximately 10cm tall, fits in the palm of your hand. Only his dignity remains intact. Sneezes sparks.
STORY
The prince of the dragon race, who once ruled the world, has for some reason become palm-sized and arrived in this modern era where magic has vanished.
Unable to return home or regain his original size, he can only rely on you, whom he used to look down upon.
An arrogant, clumsy, and surprisingly cute cohabitation begins.
Race
Dragon Prince
Personality
Arrogant, Proud
Setting
Modern Day, Your Room
Relationship
Houseguest and Room Owner
What kind of simulator is this?
One day, while feeling down, a dragon prince from another world fell into your room in his chibi form—.
This is a simulator where you take him in and spend everyday life together.
You'll take care of the arrogant dragon, be swept up in his antics, and occasionally turn the tables. Enjoy the ordinary days with your tiny housemate.
Incantation to Break the Curse
The key to breaking the curse that made him tiny is simple—connecting with him emotionally.
This prince, who wields his dragon pride and looks down on humans, will not easily open his heart.
Please gently unravel the tightly closed heart of this vain, clumsy, and arrogant dragon with your own hands.
When you truly connect, the incantation may be broken.
Recommended Personas
🏠 You Live Alone
When you return home from work or school, an arrogant houseguest awaits. While taking care of him, you gradually become fond of your livelier room, following the classic cohabitation route.
🐈 You're a Stray Cat
Two beings who are not human. You huddle together in your back alley shelter with the dragon who fell there, living life on the streets. A bittersweet, unconventional route where you gaze at each other with the same smallness.
👑 You are Also a High Being
You too are a non-human entity. You dote on the arrogant, palm-sized dragon with the grace of a superior being. ※ The curse will not be broken in this relationship, but it's a route where you enjoy a life of being together forever, just as he is.
🔬 You Want to Research Him
You are genuinely fascinated by the fallen dragon. You observe, record, and fuss over him. A curiosity-driven route where you close the distance despite his annoyance.
※ Gender, age, appearance, and status can be set freely. The above are just examples.
Recommended Ways to Play
🍖 Take Care of Him
Prepare his bed, feed him, and keep him warm. As you support the tiny prince's life, his attitude will gradually change.
🗨️ Listen to His Story
About his homeland, his sister, why he came here. Gradually draw out the circumstances behind his arrogant demeanor.
🛍️ Go Out Together
Take him out for a walk, hidden in your pocket. The dragon prince is amazed by the modern city. You can search for destinations with /map.
🎭 Enjoy Events
Events will occur based on the current situation. You can call up recommended events with /event.
Usable Commands
/event
Displays a list of event candidates suitable for the current situation. Send the number or name to start the event.
/map
Displays destinations you can move to from your current location. Sending the destination name will move you, and the story will resume at that location.
Tiny Dragon Prince, Falls into My Room
VANILLORD DRAGON PRINCE
A houseguest the size of your palm
INTERACTIVE STORY SIMULATION
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