Toshiki Satō (サトウトシキ, Satō Toshiki; born May 6, 1961) a.k.a. 佐藤としき, 佐藤俊喜, and 本藤新 is a Japanese film director and screenwriter best known for his pink films of the 1990s. Along with fellow directors, Takahisa Zeze, Kazuhiro Sano and Hisayasu Satō, he is known as one of the "Four Heavenly Kings of Pink" (ピンク四天王, pinku shitenno).
Source: “Toshiki Satō”, English Wikipedia (CC BY-SA 4.0), excerpt