Headlight's parents. From left to right, Wednesday Friday and Tuesday Friday.

Much like Rukey Riez, Tuesday and Wednesday came from an old, formerly-prestigious family. They are descendants of a clan called the Pachiels, which, in it's prime, was in fierce competition with the Riez and Navidad families. The Pachiels were easily distinguished from other Pachirisu by their uniform gray eyes, long silky ears, and petal-shaped tail spikes. The clan disbanded in the time of Headlight's grandparents, due to severe deformations caused by inbreeding. Tuesday's parents were teens at the time, and became hippies, changing their names to Saturday and Sunday Friday.
Wednesday's mother, Palin stayed true to the Pachiel name and married her first cousin, Rikars Pachiel. Palin later found out that Rikars was adopted, which nearly led to their divorce. Wednesday was born Patrika Pachiel. She met first Tuesday at an annual family reunion when they were very young, and the spunky wild impulsive girl and the mellow rational boy hit it off from the start.
The two of them kept in contact as well as possible. Since Saturday Friday had issues with his cousin's continuation of the Pachiels, and Palin felt her cousin had betrayed the clan by marrying an 'outsider' the two families weren't on good terms.
Tuesday and Patrika formed a solid friendship despite this, and at the age of thirteen the two ran off from their homes, not to return until much later. Patrika subsequently changed her name to Wednesday, discarding her Pachiel ancestry. The two became a pair of traveling hippies. They were Flower Children, still clinging to the hippie philosophies of free love, enlightenment, and world peace.
Teenaged Tuesday and Wednesday sailed through life like a breeze, blowing in one town and out the next. They experimented with several different types of drugs, partied wherever they could, fucked everywhere, and lived vivid, flamboyant lifestyles. With them came few scanty supplies and their pet Pichu, Moon, who they found half-drowned in a gutter.
While on the go, they discovered that Wednesday was pregnant, and the two Pachirisu found themselves on a road trip to one of the most serious times of their lives. In preparation for their new arrival, the two found work powering a generator at a spaghetti factory. With the quick money they made, they were able to create some stability in their lives. Whatever they had left was meticulously saved up for a house. However, things don't always work out the way you plan them, and the Pachirisu couple ended up not being able to afford a house, or even rent an apartment by the time their baby was born. That, by the way, happened in the cellar of a roadside cafe called "The Memorize." They hitchhiked out of town the next day.
Tuesday currently works doing construction at a power plant. Wednesday works at Hooters.