please help with getting illya model from chinese game

[azukibun]

Anyone know how to get the models from Human Academy is what the game's name is translated to, its a chinese game, I've been trying to get this model for over a year now, https://www.youtube.com/watch?v=AJRLFIit1Pg  here is a video of the model I am trying to get. I'll do whatever I can to get it.