>>2861739Aside from what you could've easily done yourself after consulting with
https://learnmmd.com/http:/learnmmd.com/pmxeditor-pmxinfo-analyzing-optimizing-mmd-models/ ,
the upper body weights were largely missing due to poor weighing technique, that's about it. Also the lower legs clipping through thighs.
https://files.catbox.moe/roe03w.rarI neglected to do this and don't want to reupload the edit for a fourth time, but I heavily recommend disabling local parent rotation inheritance for 上半身3, because it messes with frontal ribs in an ugly way. It's not even used in any other model, AFAIK, so it will definitely cause compatibility issues. I also recommend changing the English naming of and slightly moving the 下半身 bone to make it easily selectable and avoid confusion.