Shikki from "Ijiranaide, Nagatoro-san".
Recommended weight: 0.8-1.
Trigger words: "shikki, brown hair, large breasts, (twintails:0.6), medium hair, bangs, (thick eyebrows:0.5)".
Trigger words for outfits: "white shirt, blue skirt" or "white karate gi, white pants, white belt".
Due to limited source material in color I recommend adding "monochrome" and "greyscale" to negatives.