This repository contains a character-specific LoRA model trained for Yuuma, a character appearing in the webtoon “Breaking the Perfect Couple”.
The goal of this model is to preserve Yuuma’s facial features, hairstyle, and overall character identity while enabling stable generation across a wide range of compositions, from close-up portraits to full-body shots.
Trigger Word
Required trigger:gb_yuuma
Including gb_yuuma in your prompt helps strongly anchor the generation to Yuuma’s character traits.
Dataset Construction & Training Pipeline
스크린샷 2026-01-29 16-43-19
This model was not trained on raw collected images alone.
Instead, a character-consistency-first data pipeline was designed and executed.
1. Original Image Acquisition (from IP Team)
High-quality reference images were provided directly by the IP team, covering the following compositions:
Close-up
Bust shot
Knee shot
Full shot
Each composition includes:
Front view
Left-side view
Right-side view
This structure ensures that Yuuma’s facial features, hair, and silhouette remain consistent across different viewing angles.
2. Data Augmentation Using Flux
Using the original images as input, a Flux-based generation pipeline was used to create a large augmented dataset.
Total generated images: ~1,000
Generation time: ~12 hours
3. Manual Curation (Critical Step)
All generated images were manually reviewed and curated. The following were removed:
After curation, approximately 500–600 images were selected for training.
4. LoRA Training
The curated dataset was used to train a LoRA model on top of:
Base model:astranime_V6
Architecture: Stable Diffusion 1.5
The training focused on maintaining strong character identity while allowing reasonable variation in pose, framing, and context.
LoRA Training Configuration (Reference)
⚠️ The following configuration reflects the settings used during training as closely as possible.
Some values may not be exact and are provided for reference only.
