After the success of the OVA series Hades – Chapter Sanctuary, this movie served as a continuation to the Hades saga. Injured after his confrontation with Hades, Seiya is in a coma and under Saori’s care. The Goddess Artemis, Saori’s older sister, comes to Earth to ask why she is not fulfilling her duties as a Goddess and takes control of Sanctuary in her stead. Hoping that it may bring peace on Earth, Saori goes to the Sanctuary and starts spilling her blood and it is up to the Bronze Saints to save her.
After the bloody battle against Hades, goddess Athena’s Saints are still recovering when they find themselves face to face with their newest and most formidable foe: the dreadful goddess Artemis, accompanied by her Angels. Artemis replaces Athena as the Earth guardian deity and takes over the Sanctuary, turning Athena’s Saints into her servants.
Upon invading the Sanctuary, the Bronze Saints learn that Athena was banished by Artemis and decide to fight the moon goddess in order to rescue their true goddess and free the Earth from Artemis’s ominous control.
The movie focuses mostly on Seiya and Athena, as the other Bronze Saints are not seen as much; they only appear during their respective fights with the other Angels, and briefly towards the end. However, Eagle Marin also appears, as Ophiuchus Shaina, Unicorn Jabu, and Hydra Ichi do, though the latter three are just cameos.
The movie also has a very ambiguous ending, with many plot points and danglers unresolved.