Description by bsinky:
Default appearance: ogSumi, red hair, long hair, ponytail, hair bow, red bow, swept bangs, red eyes, shuujin academy school uniform, black blazer, white turtleneck, black bowtie, plaid skirt, pleated skirt, black pantyhose, loafers, red footwear
Phantom Thief, Violet: ptSumi, red hair, long hair, ponytail, hair ribbon, black ribbon, swept bangs, red eyes, black choker, black jacket, open jacket, cropped jacket, coattails, black leotard, cleavage, belly chain, silver rose, frilled sleeves, red gloves, black thighhighs, high heels, black footwear
Casual outfit: csSumi, red hair, long hair, ponytail, hair bow, red bow, swept bangs, red eyes, polka dot shirt, aqua off-shoulder shirt, white high-waist shorts, sandals
Summer uniform: smSumi, red hair, long hair, ponytail, hair bow, red bow, swept bangs, red eyes, yellow cardigan, ribbed sweater, flower badge, long sleeves, collared shirt, white shirt, plaid skirt, white socks, loafers, brown footwear
January winter outfit: jnSumi, red hair, long hair, ponytail, hair bow, red bow, swept bangs, red eyes, winter clothes, black coat, red scarf, long sleeves, mittens, open coat, plaid skirt, black pantyhose, loafers, red footwear
Winter casual: wnSumi, red hair, long hair, ponytail, hair bow, green bow, plaid bow, swept bangs, red eyes, red winter jacket, buttons, black turtleneck, black pantyhose, mary janes, black footwear
Gymnastics outfit: ltSumi, red hair, short hair, single hair bun, swept bangs, red eyes, blue dress, gradient dress, blue choker, collarbone, long sleeves, skin tight, short dress, flats, white footwear
Dance outfit: dnSumi, red hair, long hair, ponytail, hair ribbon, red ribbon, swept bangs, red eyes, heart earrings, polka dot crop top, puffy short sleeves, red tied shirt, midriff, plaid skirt, bracelet, red thighhighs
Swimsuit: bkSumi, red hair, long hair, ponytail, swept bangs, red eyes, hair bow, striped bow, pink frilled bikini, off-shoulder bikini, bikini skirt, flip-flops
Christmas outfit: xmSumi, red hair, long hair, ponytail, swept bangs, red eyes, fur hat, snowflake earrings, white dress, fur-trimmed dress, fur collar, sleeveless dress, white gloves, fur-trimmed gloves, black belt, fairy wings, snowflake print pantyhose, fur-trimmed boots, high heel boots
Fashion outfit: tora, red hair, long hair, hair down, swept bangs, sunglasses, pink-framed eyewear, leopard print, pink scarf, print scarf, print shirt, clothes writing, character print, layered sleeves, zebra print sleeves, fingerless gloves, yellow leggings, green socks, pink sandals
May need "yellow print shirt" as a helper. Pretty unstable at the best of times.
Custom outfits: rndSumi, red hair, long hair, ponytail, swept bangs, red eyes
I recommend "hair bow, red bow" as well but you do you
For her alternate hairstyle, replace "ponytail" and her hair bow/ribbon with "hair down, glasses"