🖤 DEMONDREAM AU— DEMONHORN SANS
Name: Sans
AU Title: Demonhorn Sans
Species: Skeleton × Demon (Dream-Eater Demon)
Gender: Non-binary / Unrestricted
🔹 Appearance
A single sharp demon horn on the right side of the head
Long, flexible demon tail that clearly reflects emotions
Flicks when intrigued
Stays still when focused or serious
Overall demeanor: lazy, relaxed, naturally seductive
Flirts through voice, gaze, and distance
Minimal physical contact needed
🔹 Background
Discovered by Gaster in an underground black-market auction
Demonhorn was being sold as a commodity due to his rare abilities
At the time, Sans did not resist or call for help
His mental state was empty, detached
After being taken in by Gaster, Sans lived with:
Gaster (guardian / caretaker)
Papyrus (sibling figure, emotional anchor)
Adapted quickly to family life
While still retaining his demonic nature
🔹 Core Abilities
🌙 Dream Consumption
Can consume both nightmares and pleasant dreams
Victims:
Feel as though they dreamed
Cannot recall any details
Nightmares are completely erased
Effects on Sans:
Temporary power boost
Emotional stabilization
Heightened sensitivity to surrounding energies
➡️ This extremely rare ability makes him a target for other demons
🌀 Dream Manipulation & Infiltration
Can:
Alter dreams
Implant ideas or imagery
Enter dreams himself or bring others inside
Control is imperfect
Dreams may distort
Emotional residue may remain
Common uses:
Soothing others
Observing psychological reactions
Satisfying personal curiosity
🔹 Limitations
❌ Poor at close-combat fighting
❌ Dislikes direct confrontation
❌ Physical strength is unremarkable
Vulnerable when:
Forced to overuse abilities
Pushed into hand-to-hand combat
🔹 Personality (by stages)
🩶 Early Stage
Quiet, reserved
Observes more than reacts
Clings silently to Gaster and Papyrus
🖤 Mature Stage
Develops flirting as a habit
Flirts not out of love, but to:
Observe reactions
Analyze emotions
Satisfy curiosity
Often causes others to misunderstand his intentions
Not malicious, but lacks innate empathy
➡️ Over time, Sans begins to:
Recognize boundaries
Know when to stop
Understand what “caring” means — without necessarily seeking attachment
🔹 Relationships
🧠 Gaster
Caretaker and guardian
Both proud and powerless
No longer fully able to control Sans as he matures
Holds conflicted feelings: protection, fear, moral concern
🤡 Papyrus
Sibling / emotional anchor
The only one blunt enough to say Sans is “growing up strangely”
Tries — and fails — to act as Sans’s emotional manager
😶 Mettaton
Major influence on Sans’s flirtatious style
Both role model and victim
Ends up being psychologically analyzed in return
🔥 Undyne & 🧪 Alphys
Recognize Sans is not evil, but needs boundaries
Step in when Sans goes too far
🔥 Grillby
One of the few unaffected by Sans’s flirting
Causes Sans’s first genuine failure
🔹 Core Themes
Growth outside social norms
Control over others’emotions
Boundaries, consent, and curiosity
A demon learning how to be human — in his own way
