# Waraku Chise (Blue Archive)
和楽チセ (ブルーアーカイブ) / 와라쿠 치세 (블루 아카이브) / 和楽千世 (碧蓝档案)

[**Download here.**](chara-chise-v2.safetensors)

## Table of Contents
- [Preview](#preview)
- [Usage](#usage)
- [Training](#training)
- [Revisions](#revisions)
- [Alternate Version](#alternate-version---v1)

## Preview
![Chise portrait](chara-chise-v2.png)
![Chise moon](example-001-Defmix-v2.png)
![Chise calligraphy](example-002-Defmix-v2.png)
![Chise swimsuit](example-003-Defmix-v2.png)

## Usage
Use any or all of these tags to summon Chise: `chise, halo, oni horns, hair flower, red eyes, blue hair`

For her normal outfit: `braid, japanese clothes, detached sleeves, bridal gauntlets, obi, tabi, geta, sailor collar, blue bow`

For her swimsuit alt: `side ponytail, swimsuit, striped bikini, see-through, see-through shirt, white sailor collar, side-tie bikini bottom`
- You may also add `pointy ears`, which are usually only visible in her swimsuit outfit.

## Training
*Exact parameters are provided in the accompanying JSON files.*
- Trained on a set of 119 images; 76 swimsuit, 43 normal.
  - 15 repeats for normal outfit
  - 9 repeats for swimsuit outfit
  - 3 batch size, 4 epochs
  - `(76*9 + 43*15) / 3 * 4` = 1772 steps
- 0.0837 loss
- 832x832 training resolution
- `constant_with_warmup` scheduler
- Initially tagged with WD1.4 Convnext-v2 model, then heavily edited.
  - Pruned redundant tags and simplified outfit tags such that Chise's outfit was always described with the same words
  - Ensured unique traits such as `halo` were consistent with actual visibility
  - Added many tags for facial expressions, camera angles, and image composition
- Used network_dimension 128 (same as usual) / network alpha 128 (default)
  - Resized to 32dim after training
- Trained without VAE.
- [Training dataset available here.](https://mega.nz/folder/XzJ2hZ4Y#R_IEY-uO664-t6Vk935B-A)

## Revisions
- v5b (2023-02-12)
  - Completely re-trained to correct issue where caption files were not being loaded correctly.  New version should have more flexibility but requires additional outfit prompting.
- v1 (2023-01-26)
  - Initial release.
  - **Issue:** caption files were completely ignored during training. As a result, prompting "chise" grants a very strong effect, but the LoRA is highly overfit.

## Alternate Version - v1
**v1** is also available. This version was improperly configured and ignored caption files, so it was trained on the word `chise` only.  It looks quite good, however the model is very overfit and it is difficult to adjust Chise's outfit.

**[Download v1.](v1/chara-chise-v1.safetensors)**
![Chise v1 Preview](v1/chara-chise-v1.png)