Kuze Hinata (久世 日向) from the game Ore no Tsure wa Hito de Nashi (俺の彼女はヒトでなし). Trained for 850 steps from a variety of in-game images. Haven't found any limits on the tests, but was trained on some NSFW so take precautions if needed. Add "bat wings" if you want her vampire form.

Prompt

KuzeHinata,blonde hair,red eyes,short hair,small breasts

Prompt (Vampire)

KuzeHinata,blonde hair,red eyes,short hair,small breasts,bat wings