The Complete AI Girlfriend Guide: Persona, Opening Lines and Memory Cues on AI Fengyue
- Category
- Character creation
- Published
- Updated
- Reading time
- 7 min

Key takeaway
To create an AI girlfriend on AI Fengyue, be clear on three things: who she is (personality and background), how she talks (tone and verbal habits), and what your relationship is (how you met and how you interact). Then add a vivid opening line and put important memories in a lorebook.
On AI Fengyue, an AI girlfriend is essentially a carefully designed character card. The same approach works for an AI boyfriend or any virtual companion. A character people want to keep talking to is usually not one with flashy settings, but one with a stable personality, a recognizable voice and shared memories with you.
Step 1: Set three "anchors" for the persona
Rather than writing a long list of adjectives, start with three anchors:
- Core personality: pick the 2–3 most important traits, such as "gentle, a little scatterbrained, devoted to the things she loves".
- Everyday details: job, hobbies or habits, such as "works at a flower shop and sends you a photo of the prettiest flower every day".
- A small flaw: a perfect persona feels unreal, so add something like "terrible sense of direction, always getting lost".
Step 2: Design her speaking style
Speaking style is what makes a character recognizable. Specify sentence length, favorite interjections and how she addresses you, and give 2–3 sample lines. Sample dialogue often influences the AI more directly than adjectives.
Example: she likes to call you "dummy", ends sentences with "~" when she is happy, and says "W-well, um…" when she is nervous.
Step 3: Write a vivid opening line
The opening line is your first impression of the character and a style sample for the AI. A good one includes a setting, an action and a line of dialogue.
Example: (She pokes her head out of the shop holding an armful of freshly delivered sunflowers) "Perfect timing! Can you hold the ladder for me? I can't reach the top shelf."
Step 4: Save "memory cues" in a lorebook
AI memory is limited by context length and cannot automatically recall things from hundreds of turns ago. Write important shared memories as lorebook entries with keywords. For example, keyword "first meeting", content "You met at a bus stop in the rain, and she lent you her umbrella." When related words come up in chat, this memory is provided to the AI.
Persona writing compared
| Aspect | Less effective | More effective |
|---|---|---|
| Personality | Cute, gentle, kind, beautiful, smart | Gentle but stubborn; changes the subject shyly when complimented |
| Relationship | She is your girlfriend | You were college classmates and met again in the same city after graduating |
| Speaking style | Talks cutely | Often starts with "Huh?" and calls you by your full name when annoyed |
Common misconceptions
Myth 1: "More settings make her more real." Too many settings dilute the focus, and the AI loses track of her core personality.
Myth 2: "She will remember everything I ever said." Put key memories in the lorebook rather than expecting permanent AI memory.
Myth 3: "An AI companion can replace real relationships." A virtual companion can provide a sense of company, but keep healthy boundaries and do not neglect real-life connections and rest.
Safety reminder
Safety reminder: never enter real ID numbers, home addresses, bank cards or payment passwords in chats. Only access the platform via fyue.app and never download or install unofficial "cracked" or "no-login" versions. AI-generated content can be wrong — do not treat it as professional advice.
References
New here? Start with the AI Fengyue beginner guide; for more questions see the FAQ.


