This started as a test but I figured the result was decent so I decided to upload it. I'm open to suggestions to improve on the next one.

It was trained on about 800 images.

I suggest using 0.8 to 1, depending on the model.

Activation word is futabasakura.

Prompts:

Default outfit:

1girl, futabasakura, blunt bangs, glasses, black-framed eyewear, ahoge, small breasts, glasses,  headphones, behind-the-head headphones, white shirt, jacket, off shoulder, fur trim, fur-trimmed jacket,  green jacket, shorts, thighhighs, boots

Navi outfit:

1girl, futabasakura, blunt bangs, glasses, black-framed eyewear, ahoge, small breasts, bodysuit, black bodysuit, gloves, gloves with green fingertips, green boots, goggles, goggles on head, belt

Official swimsuit (not perfect but it seems to work):

1girl, futabasakura, blunt bangs, glasses, black-framed eyewear, ahoge, small breasts, swimsuit, bikini, yellow bikini, frills, frilled bikini, strawberry print