>>7889375The Aikatsu line was done by Shinkocchou Seihou sculptor and the guy who breaks the sculpt to put joints in also does this for Shinkocchou Seihou.
Here is how to Aikatsu figuarts, step by step. Step 1 to 2 took them 3 months, for SW and capeshit they probably have to make everything in that 3 months on top of having shit reference materials.
https://cgworld.jp/feature/201605-cgw213-T1aikatus.html