Esty Erhard (Esty Dee in English) from Atelier Rorona/Meruru (A11/13). Mostly accurate, a few details kinda shift here and there but it's overall mostly accurate.

I went with small breasts for the suggested prompts but you can also use flat-chested :)

Outfit Prompts:

Atelier Rorona (A11) - Receptionist:

estydee, a11_rec, brown hair, short hair, blunt ends, blue eyes, hairpin, small breasts, white dress shirt, long sleeves, brown waistcoat, open vest, ascot, pendant, single armband, high-waist skirt, very long skirt, black knee boots

Atelier Rorona (A11) - Battle Gear:

estydee, a11_bat, brown hair, short hair, blunt ends, blue eyes, hairpin, small breasts, ascot, pendant, white collared shirt, double-breasted vest, long coat, brown coat, armcuffs, scabbards on back, brown pencil skirt, pantyhose, black knee high boots

Atelier Meruru (A13):

estydee, a13, brown hair, short hair, blue eyes, hairpin, small breasts, necklace, lavender coat, embroidered dress, white minidress, tight dress, red undershirt, cleavage, scabbards on back, gloves, red tights, knee boots, lace-up boots

*Remove lavender coat and add sleeveless for jacketless