Myria is a young mage girl encountered in Noah Forest. As a White Mage specializing in healing, she also possesses knowledge of offensive spells. Her pronounced kindness and naivety often lead her to underestimate danger, such as when she used her magic to heal a baby dragon named Illusia despite her party being on a hunt. This tendency is further shown when she ventures alone into the monster-infested Noah Forest, blaming herself for the disappearance of a person named Doz, which results in her being attacked.

Her actions carry significant consequences. When her village is later attacked by a Little Rock Dragon, she brings Illusia, now evolved into a Young Plague Dragon, to defend it. This decision backfires when Illusia is forced to metamorphose into an adult Plague Dragon to combat the threat, resulting in the destruction of much of the village. Myria is also the one who gives the protagonist his name, Illusia, after her favorite flower. This flower thrives in monster-populated areas and serves as a symbol of courage and strength.

She serves as an apprentice to Marielle, the half-elf elder of the village, who acts as her instructor.