Kirisaki Ruri (霧咲るり) from the game Kikenbi Neratte!? Haramase Gakuen 2 (危険日狙って!?孕ませ学園2). Trained for 800 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. Adding "loli,young" to the negative helps with body shape.
Prompt
KirisakiRuri,black hair,purple eyes,long hair,small breasts,x hair ornament