Sakuraooji Yuuna (桜大路 優奈), the title character from the game Bikyaku Reijou Yuuna (美脚隷嬢優奈) by Crossover. Based off the game design by Gentle Sasaki. Trained on both SFW and NSFW cg so could give censored images - tag as needed.

Prompt:

sakuraoojiyuuna,long hair