Itsuki Sato is a character from Houkago no Pleiades, the magical girl anime series produced by Gainax and later adapted into a film. She is one of the close friends involved in the story’s central group, supporting the main cast through their adventures and emotional growth. Itsuki contributes to the series as a memorable supporting character, helping shape the everyday school-life atmosphere that contrasts with the magical and space-themed elements of the plot.