This is Ellie Troit from Conception II.

Her base prompt:

c2e11ie, green hair, short hair, hair bow, purple hairband, antenna hair, brown eyes, star-shaped pupils,

There's also 3d samples in the dataset if you're curious to try.

Her default outfit:

black thighhighs, pleated skirt, zettai ryouiki, school uniform, long sleeves, shoes, necktie, white skirt, miniskirt,

Her swimsuit outfit:

casual one-piece swimsuit, covered navel, frilled one-piece swimsuit, ribbon,

Her battle outfit:

thigh boots, red thighhighs, underwear, wings, battle suit, red footwear, white panties, long sleeves, purple hairband,

holding staff \(weapon\),