Group LoRA for Haison Shoujo - now available in Illustrious. You have to be careful with the CFG scale with this as it seems to have high saturation issues when going above CFG 3 with a detailed prompt. This is my first time experimenting with Illustrious however so it may just be an issue with how I am using it.

To prompt, you can just call out the number of characters followed by the character names you want in the image. Some characters tend to overpower the image however due to the training dataset being skewed towards certain characters appearing together more often. I tried to balance the weights some, but it is going to require more work to get it to a good spot.

All of the sample images were generated with txt2img, hi-res fix, and then upscaled with R-ESRGAN 4x+ Anime6B. No img2img or adetailer used. You should be able to get good results with inpainting though based on what I have seen through playing around with it.