One of the Advena Avis immortals. Elmer was born into a religious cult where the sole purpose of his existence was to be an object of abuse. He later moved to Lotto Valentino where he went to the same alchemy school as Huey and Monica.  Elmer wants everyone in the world to be happy and have a smile on their face. He does not care what means he needs to use in order to achieve this and is consequently described by Huey as "pure evil to an absurd degree." Regardless, Huey considers him his only friend in the world and is the only person he does not see as a test subject.  When Maiza and Czes begin looking for the rest of the Advena Avis immortals, they find him in a secluded European village. He later joins them on board the Exit after receiving an invitation claiming to be from Huey.   ~!He was also was on board the Flying Pussyfoot where he met with Fermet, who did not devour him because he was afraid Elmer's personality would influence him. To prevent Femet from making the passengers unhappy, Elmer threw him off the train.!~

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, this anime adaptation follows several events that initially seem unrelated, both in time and place, but are part of a much bigger story&mdash;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. 
(Source: MAL Rewrite)

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He is the son of [Linda Young](https://anilist.co/staff/95252).

Also goes by the names Shintaro Ohata and Shintarou Oohara.

Aboard the Advenna Avis in 1711, a group of alchemists summon a demon in the hopes of gaining eternal life. The demon gives them an elixir of immortality and the method of ending their existence by "devouring" one another. Soon after, one among them begins to devour his companions. Realizing the danger posed by staying together, they scatter across the globe. 
Centuries later in 1930's America, a certain federal investigator tries his best to combat the rise of organized crime during Prohibition, send a particularly infuriating terrorist to Alcatraz, and catch an outrageous thief duo. Meanwhile, the transcontinental train, the Flying Pussyfoot, begins its trail of blood across the country. 
In 2002, a small group of the original Advenna Avis alchemists are on a journey to find the rest of their fellow immortals. However, there is one companion they did not expect to meet again. 
Seemingly unrelated events, from a sleepy Italian city in the early 1700's to a modern luxury cruise ship traveling across the Pacific, reveal themselves to be far more connected than anyone could imagine... 
(Source: Wikipedia &amp; MAL Rewrite)

Three DVD-only episodes made from the light novels, which flesh out characters and plot events from the original series and establish closure to the story as Carol and the Vice President return to New York.

New York, 1927. 
In a corrupt city where crime rules the streets, Firo Prochainezo is in the Camorra, an Italian criminal syndicate distinct from the mafia. Though a member of the relatively small Martillo family, Firo has big ambitions and is determined to make his mark. But while the Martillos may not be the biggest bad guys on the block, they've got some distinct advantages working in their favor. Does Firo have what it takes to become a made man? 
Let the crazy ruckus begin! 
(Source: Yen Press)

In 1705, a rash of murders takes place in Lotto Valentino, a provincial city on the Italian peninsula. The murderer, who wears a pure white mask and places one such mask on all of their victims, is known as the "Mask Maker," and anyone who witnesses their murders becomes their next victim. Huey Laforet, a boy who attends a "private school" for alchemy, hates everything about the world. Monica Campanella, his schoolmate, confesses her feelings for him. Elmer C. Albatross arrives in town as the school's newest student. Niki, a merchant's slave girl, witnesses one of the Mask Maker's crimes. All four youths must confront the Mask Maker and a conspiracy to control the entire city — the start of a 300-year-long struggle amongst immortals.