Ouka Nanase from Kai's Blade's Heart game. Decided to follow a tutorial so that future models trained on this site doesn't end up without an activation tag.
Edit july 7th: Some story time that I forgot to add the first time around. Ouka was the first ever model that I trained. It's avaliable on pixai, check it out if you're morbidly curious about how bad it is. (spoiler: it's pretty bad, since it merged her school uniform with her casual one)