This is a FCS-only head mold. It was released in Japan on June 11th, 2017. This headmold was Sato only, but became available at Tenshi no Mado and Sumika locations on September 18th, 2021. It also had a limited release at Tenshi no Mado along with tan color resin from June 28th through August 30th, 2020.
Please click on the individual thumbnails to see the pictures full-sized.