Otowa Keika (音羽 桂香) from the games Natsu Kagura (夏神楽) and Kagura Reimeiki (神楽黎明記) by Studio e.go and Debu no Su Seisakusho. Trained on in-game images, some of which were NSFW and censored so tag as needed. Adding "by Yamamoto Kazue" to the prompt might help with getting closer to the original style. Miko girl is cute.

Prompt

otowakeika,very long hair,black hair,green eyes