OIZ Saya

Currently serving as a researcher and supervisor of the Onko-Academic-Society and Hanawa Hokiichi Archives. In 2017, founded the world's first historical consulting firm, "goscobe Co., Ltd.," utilizing the historical analysis methodology of empirical historiography.

Under the pseudonym Kosei Mitsuyoshi (三石晃生), notable works as a religious historian and philosopher include serving as History Consultant for the Netflix Original Series Anime "ONI: Thunder God's Tale" (https://www.netflix.com/title/81028343, produced by TONKO HOUSE), which won the Annie Award and Emmy Award in 2023, and as Worldview Supervisor for MAPPA's inaugural original theatrical anime film "Alice to Therese no Maboroshi Koujou" (https://www.netflix.com/title/81450803, directed and written by Mariri Okada) in the same year.