Satsuki Aya graduated from the University of Tokyo Secondary School and the Nihon University College of Art's Film Department. She works as a screenwriter, writer, novelist, and manga author.

Due to her parent's work, she lived in Egypt and returned to Japan in elementary school. Her Japanese wasn't great so she worked on learning it with the help of anime and TV dramas.

Though she initially wanted to become a novelist, her interest in screenwriting grew in middle school. She would get her debut as a screenwriter for 2018's "Ultraman R/B". She debuted as an author in 2020 with "SSSS. GRIDMAN ANOTHER LOAD".