Luminous Arc 3 is a role-playing video game developed by imageepoch and published by Marvelous Entertainment. In Luminous Arc 3, witches have ceased to exist, but their legacy lives on through "Magi". There are two people who are associated with witches. One is Sarah, who wants to become the legendary witch and the Holy Witch Sylvia.

The Royal Kingdom of Saint Bardia had been in peace for a thousand years. People thank the Holy Knight Anogia and the legendary Holy Witch Sylvia, which saved the world once. A war between humans and the Felicias (a species of fairy) has started. They fight for the power of Eyes that provides magical powers.

Luminous Arc 3 follows the base gameplay of the previous games of the series with few improvements.