>>2436222Sorry if it gets a bit confusing. First off, you want to make a copy of each "足" bone. Place those above each original. Untick the "Vis" option, then click "Rot+" and set the ratio to -1. Under that, use the number for whatever you have your "腰" set to. The bone should be "purple" now. Also make sure to change the name of the bone so it doesn't match the original leg bone. I usually see "腰キャンセル( 左or右)"
Next, go to the original leg bone and change the parent number to the new purple bone. After that, make another copy of this bone and enter 1 for "deform". Click "rot" but keep it as 1. Below that, enter the original leg bone as the "parent" The new bone should be dark blue now. Change the name to "右足D"
Next is the "右ひざ" bone. You can skip the step for the "purple bone" here, but follow the steps for the "dark blue bone", but this time you're going to change the top most parent bone to "右足D" so it connects to that. When you're done there, do the same steps for the "左足首" bone. Once done, move on to the next leg, and follow those same steps. It should look something like the related image.
