Macaria is the only child of Hades and Persephone (“Seph”), King and Queen of the Underworld. Though initially opposed to the idea of having a child, Hades conceded at Seph’s insistence, and Maci was born in the fall, several decades after they had first been married. Arrangements were made with [[Demeter]] to allow a temporary exception to the longstanding Pomegranate Agreement that dictated Seph’s seasonal location, permitting her to remain fulltime with baby Maci and Hades in the Underworld until Maci’s 5th birthday. For 5 years, the three of them were a close-knit family, and the little Princess, first of her title in the kingdom's eternal history, was showered with unbridled love and attention from her parents and their subjects.

When Maci was 5 and this arrangement ended, she began to travel with her mother each spring/summer season to stay with her and Demeter topside during the traditional six-month span. Persephone and Demeter’s springtime cottage was a very different setting than the gothic kingdom palace that baby Maci called home – for one thing, each of the nymphs, led by the constant obnoxious crusade of Demeter herself, lived an aggressively anti-Chthonic lifestyle and tried their hardest to convert Maci into the Olympian light. Already upset at having to leave both her regular life and her father behind for seemingly no reason, Maci did not take kindly to this attitude. The attempts to turn her against her dad and her home combined with Maci's stewing misery at being uprooted turned the first year of her spring presence into a six-month battle between a loud and moody 5-year-old Underworld Princess and her intensely condescending and toxic Olympian-bred grandmother.

For the next five years, Maci continued to travel with her mother seasonally. Her spring-summer sessions were spent amongst increasing hostility, a combination of Demeter’s typical obnoxious nonsense coming up against Maci’s short-tempered predisposition. Armed with the rage of a slightly spoiled princess and actual literal pyrokinetic superpowers, Maci reacted to her grandmother’s mistreatment and the general judgment of the Olympians around her by acting out a reign of terror: picking fights, fighting back, and setting things on fire. Meanwhile, autumn-winter time back home was enjoyed as a life of luxury, doted upon by her reunited parents, and spending time with her closest and only friends, twins [[Hypnos]] and [[Thanatos]]. When Maci was 10 years old, Seph petitioned Demeter to allow Maci to make an active decision on whether she would prefer to continue travelling seasonally as Seph was obligated to or stay fulltime in the Underworld. Maci chose to remain in the Underworld, where her perfect Princess life and friends were.