A weight of ~1.0 is recommended (You might want to adjust the weight depending on your model).
Prompts:
Base appearance (for custom outfits):
KoamiSumire, heterochromia, blonde hair, long hair, twintails, drill hair, red hairband
Default outfit:
KoamiSumire, heterochromia, blonde hair, long hair, twintails, drill hair, red hairband, detached collar, brooch, blue capelet, white sailor collar, red bowtie, black corset, elbow gloves, red belt, blue skirt, black pantyhose, thighband pantyhose