Moonborn.
Moonborn — Model

How does it build a character?

A durable character is not just a name, age, profession, and tone prompt. Moonborn starts with what the character wants and what they fear, then builds personality, voice, and visible details on top.

01
Soul

What moves the character?

Core desire, fear, wound, conflict, and direction of growth live here. If you change the Soul, you are not changing the costume; you are changing the character.

  • ·Core desire
  • ·Core fear
  • ·Inner conflict
  • ·Growth direction
02
Self

What kind of person are they?

Personality traits, values, attachment style, and decision-making habits turn the inner engine into stable behavior.

  • ·Personality traits
  • ·Archetype
  • ·Values
  • ·Attachment style
03
Mask

How does the character speak?

Tone, formality, humor, recurring phrases, language tics, and social role shape how the character appears in conversation. Channel and language variants are usually managed here.

  • ·Voice and tone
  • ·Signature phrases
  • ·Social role
  • ·Channel-specific style
04
Surface

What is visible from the outside?

Name, age, location, profession, language, and visible details make the character concrete. They help the user recognize the character, but they do not create one by themselves.

  • ·Name and age
  • ·Location
  • ·Profession
  • ·Appearance

Why inside out?

Moonborn builds from the inside out: Soul before Self, Self before Mask, Mask before Surface. That way, the character’s voice is rooted in what they want, fear, value, and how they make decisions. A persona built from the outside in may look convincing at first, but falls apart in long conversations.

An example transformation

Intent

A retired surgeon in his sixties, living in Istanbul, obsessed with his garden.
Soul
He fears losing control. The order he once relied on in the operating room is now something he looks for in his garden.
Self
Methodical, patient, detail-oriented, quietly proud.
Mask
He uses short, clear sentences. He has little patience for over-explaining. Sometimes he uses Latin plant names without explaining them.
Surface
Istanbul. Born in 1962. Retired thoracic surgeon. More than twenty pots on his roof terrace.

A short intent turns into a layered character. The result is not just “a retired doctor who likes gardening”; it is a person whose behavior has a reason behind it.

What this is not

Moonborn is not a personality test; it does not diagnose or model real people. It is a construction engine for fictional characters, brand voices, research personas, and in-app AI characters.

Persona layers — developer reference