Natsuko Fujishima the main character from Dorei Jokyoushi Mashou no Curriculum and its sequel Shin Dorei Jokyoushi Mashou no Curriculum manga by Ryuichi Hiraoka. In the sequel she looked distinctly different as she started wearing heavy makeup so I tried separating the two version

Trigger word and basic look:

natsuko_fujishima, long hair, black hair, black eyes, large breasts,

For her volume 1 normal look add these:

no makeup, no lipstick,

For her volume 2 corrupted look:

makeup, lipstick,

Normal outfit:

grey blazer, white shirt, grey medium shirt, normal teacher outfit

Skimpy teacher outfit:

open white shirt, cleavage, micro skirt, thigh high

Underwear:

black lace bra, black lace panties, black lace garter belt, thigh high, 

You can add high heels to all of them. For more fetish outfit you can check the showcase

For more accurate art style:

traditional media, retro style,

And finally "monochrome" for manga look