@MIUMIU i didnt noticed this until now 😅
i was able to fix the collider on my own , if you want any assistance with it i can help you 😺 (but if you rather for the update version its fine too)
I don't know how to fix the collider, can I bump an updated version?
@Robobobo yes, basically you can just drag and drop the blender file from the unzipped folder into the blender scene, click don't save and it will open the model. then toy just go to the top where it says file, go down to where it says export and click export as fbx and then done. no need to change settings or anything. the only thing you need to remember is to use the right blender file bc their is two. I'm not too sure which one is which but one of them should have horns wings and a tail for the full demon form if i can remember. thing is that every animation is already done for you in the unity file
booth link for searchability: https://booth.pm/ja/items/3893635 (pajama outfit)
also the model: itself https://yorozuya-tenten.booth.pm/items/3399062 (base model or base model + outfits)