It has levelXX levelXX.ress sharedassets , should be a unity game , but both assetstudio or uTinystudio doesnt work, is there other tools to ripping unity ?

I‘m seeking charactor saber Altoria Pendragon from fate/grand order VR
https://www.youtube.com/watch?v=WQHulHE_yk4
can anybody help me out here?

I found Jinsoyun model somewhere but it wad been deleted years ago, so Im gona do it my self

I have got Jinsoyun's body and hair , but I cant find her head anywhere

can someone help me out and tell me which .upk file I should pick?