Ronny Schiatto

Ronnie Sukiart is the demon that was summoned aboard the Advenna Avis by Maiza Avaro. He gives the entire crew the elixir of immortality and only tells Maiza how to make it just in case someone wanted to make more of it.

Ronnie becomes human by request of Elmer, who wishes for Maiza to have someone to stand by him after he had lost his younger brother, Gretto. Ronnie, however, denies that he stayed by Maiza's side because of Elmer's wish and claims he stayed because of his own curiosity. He currently works as the Martillo Family's secretary.

Powers and Abilities
As a demon, Ronnie can appear where ever he wants and he can be summoned “simply by thinking about him”. He also declares that he can hear people’s words especially the ones in people’s heads which suggests that he has a form of telepathy, this is again evident when he puts “mental restrains” of those who drink the wine of immortality (restraints that also work even if the person is unnaware that he or she is conversing with another immortal as seen with Czeslaw Meyer to Isaac and Miria)and can implant knowledge into people’s minds like what he did to Maiza when he bestowed the information how to create the wine. He has no need to talk because he puts his voice straight in to people’s minds.

Ronnie has the ability to make something out of nothing as seen of the Advenna Avis when he manifests the wine of immortality into Maiza’s hands. It is unkown if he created it from throught or if it was some form of teleportation however as he could also materialize Adele's spear in his hands in an instant and teleport Isaac's "Randsome" letter to the Martillo's Speakeasy the Avaera without leaving Isaac or Miria's side.

When he walked into the Genoard Mannor he could attract the attention of all and make everyone's internal clock stop.

He also seems to have no physical body as a demon, but can interact with the physical world if he wants like when he cut Szilard’s head in half to prove that the wine would make you immortal if you choose to drink it.(he can also take any physical shape and from).

Ronnie is said to be the equal to the Rail Tracer (aka the Legendary Assassin Vino) that is acknowledged even amongst those who have faced both, such as Jacuzzi's gang.

He has implied that he has some of the benefits of immortality without some of the restrictions as he is able to use false identities and lie about his name (he has stated that Ronnie Sukiart is a name he gave himself) and cannot die, though he has not yet been seen injured. He has stated that he can devour, though he has yet to do so.

When speaking to Elmer he stated that he can take away immortality and give a host of other abilities such as mind control as well.

Ronnie can identify the Grand Panacea by simply looking at it.

Trivia

 * While Ronnie is a demon, he once claimed to be an immortal from long ago that "Knew too much". However, this seems unlikely as while he has many of the abilities that immortals have, such as longevity (he has yet to be seen regenerating), he has also shown abilities that immortals and humans lack, such as psychic abilities and the usage of fake names. Huey Laforet has his own thoughts on the matter; he believes that Ronnie is an omnipotent entity or even a "God" that is existence or possibly immortality itself.


 * While there is a ritual to summon Ronnie, he refers to it as a tedious ritual, and that the throughts of other bring him into their midst. It is possible that Ronnie made the ritual just to see if the Advenna Avis Alchemist were brave enough to attempt to summon him, or that the ritual had another purpose that has yet to be revealed. Another possibility is that Ronnie was already in their midst, but it was the ritual that allowed him to be seen gained solid form or something to that extent.


 * Maiza was about to call Ronnie a certain name when first adressing him, but he was interupted.


 * "Ronnie Sukiart" is a name that he gave himself.


 * Ronnie is apparently an old friend of Celty Sturluson, a main character from Ryoga Narita's other work, Durarara. Both characters share simular traits as well; both are non-human beings capable of superhuman and supernatural abilities, both have lived for a long time without aging and both have allied themselves with the human criminal underworld (Ronnie is a member of the Martillo Camora, while Celty is a deliverer that works for several underground groups delivering goods).