Glass Mask (ガラスの仮面 Garasu no Kamen) is a long running shōjo manga by Suzue Miuchi (美内 すずえ), serialized in Hana to Yume from January 1976, and collected in 42 tankōbon as of 2006. It follows the story of an ordinary girl named Maya Kitajima (北島マヤ) and her tumultuous rise into the world of acting. There have been three anime adaptations, first a 23 episode TV series produced by Eiken in 1984, then a three episode OVA continuation in 1998 by TMS Entertainment. Then in 2005 TMS began a new TV series, starting from the beginning of the story.

Story: Garasu no Kamen is a saga depicting the devotion of Maya, the heroine, to the performing arts as a professional stage actress, and her competition with her skilled rival, Ayumi. They are both pursuing the degree of acting proficiency and career success required to play the lead role of the legendary stage play "The Crimson Goddess". As the story unfolds it encompasses the tangled human relationships of many characters, including Maya's mentor, Tsukikage Chigusa, who discovered Maya's tremendous talent for acting during her search for a successor capable of performing the role of the Crimson Goddess, and Hayami Masumi, the young president of a large production company, who often interacts with Maya as a crafty and cold-hearted entrepreneur, while giving her faithful support and warm encouragement in the disguise of an anonymous fan ('The Purple Rose Person', or "murasaki no bara no hito" as Maya calls him for his trademark gift of purple roses).

While many chapters have been published in 'Hana to Yume' subsequent to the collected manga volumes, Miuchi Suzue is, for reasons of her own, redrawing chapters and initiating changes to the storyline. The most recently published volume features a cellphone, something which did not exist at the beginning of the series' run and may be evidence of a desire by the manga artist to modernize certain aspects of the series. Certain elements of the prior storyline in the 'Hana to Yume' chapters have also led to fan speculation that Miuchi Suzue may have decided to change the storyline entirely by disregarding these chapters and rewriting them to suit the new direction she wishes to take the series in.