Aging is one of the Four Agonies (also known as the Four Great Weapons) of The Mask Makers, and in August 2002 is in charge of escorting Luchino B. Campanella aboard the cruise liner Exit. Her name was a codename assigned to her. Aging is a woman in her late twenties to early thirties, and over two meters tall. She wears a cropped T-shirt and shorts which expose her muscular arms, torso, and legs. Her physique has been compared to that of Michelangelo's David. Aging is loud and full of presence, prone to teasing and always ready with a distinctive hearty laugh whenever she is amused or entertained (which is often). She lives for the reckless and for fun, and has no moral qualms about killing children or compunctions about battle.

Baccano!
During the early 1930s in Chicago, the transcontinental train, Flying Pussyfoot, is starting its legendary journey that will leave a trail of blood all over the country. At the same time in New York, the ambitious scientist Szilard and his unwilling aide Ennis are looking for missing bottles of the immortality elixir. In addition, a war between the mafia groups is getting worse. On board the Advena Avis, in 1711, alchemists are about to learn the price of immortality. Based on the award-winning light novels of the same name, Baccano! follows several events that initially seem unrelated, both in time and place, but are part of a much bigger story—one of alchemy, survival and immortality. Merging these events together are the kindhearted would-be thieves, Isaac and Miria, connecting various people, all of them with their own hidden ambitions and agendas, and creating lifelong bonds and consequences for everyone involved.