Long story short; Cousin had a USB in his room and I got curious as to what was on it. Turns out to be this virtual anime girlfriend type game. Wasn't a dating sim, but more like a program you would load with an anime girlfriend in it. Dress her, edit her, play with her. The works. Maybe ten years ago? Ring any bells?

Give up...there's a lot of them

I remember it being called something along the lines of Anime girl HD or Anime girl 3D