It is old fat man for your waifus to keep consistent old fat man. 😁
Make from one generated character image and extend dataset with Flux kontext https://bfl.ai/models/flux-kontext

Trained on WAI-NSFW-illustrious-SDXL https://civitai.com/models/827184/wai-nsfw-illustrious-sdxl
NOT TESTED WITH OTHER CHECKPOINTS 

Quick test comics here https://darkmaster.ai/gallery?openImageId=gallery-1749626272918-920

If you have style issues try less epoch: 000009 - 000001 (9-1 epoch)
https://mega.nz/file/Ws8kTLgT#jbBqYDMcb9sY-Q-Q6ackKZOas7SjWzvBwbpv4CJcHGc