While the model has inherent knowledge of Sekibanki, it doesn't know her alternate costume. It doesn't seem to know the official Danbooru "rock 'n' rock 'n' beat" tag so I have simply used "rocknbeat" for less tokens.

Trained on 40 images of Sekibanki in her normal costume and 25 of the alt costume, this should also assist with prompting headless Sekibanki.