Saint Seiya (Hepburn: Seinto Seiya), also known as Saint Seiya: Knights of the Zodiac or simply Knights of the Zodiac, is a Japanese manga series written and illustrated by Masami Kurumada. The story follows five mystical warriors called the Saints who fight wearing sacred sets of armor named "Cloths", the designs of which derive from the various constellations the characters have adopted as their destined guardian symbols, and empowered by a mystical energy called "Cosmo". The Saints have sworn to defend the reincarnation of the Greek goddess Athena in her battle against other Olympian gods who want to dominate Earth. It was serialized in Weekly Shōnen Jump from 1986 to 1990, with the chapters collected into 28 tankōbon volumes by Shueisha. The manga was adapted into an anime television series by Toei Animation that ran from 1986 to 1989, before being continued in the form of three original video animation series between 2002 and 2008. Four animated feature films were shown in Japanese theaters from 1987 to 1989, with a fifth in 2004 and a sixth in 2014. Since 2006, creator Kurumada has been publishing a sequel manga titled Saint Seiya: Next Dimension. Several spin-off manga by different authors have also been created, as well as a standalone anime and original net animation.
In Brazil, this anime went through several censorships and changes related to scenes with blood and violence.