Kamishiro Yuki (神白ゆき) 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.
Prompt
KamishiroYuki,silver hair,yellow eyes,very long hair,large breasts,hair ribbon