Rubeus (SMCU)

Crimson Rubeus is one of the members of the Black Moon Clan.

Appearance
Rubeus is a man with red hair, styled to look like a flame, and red eyes, and he has the black, upside-down, crescent moon on his forehead. For clothes, he wears a brown, leather jacket, green pants, black leather boots with laces, and a necklace with a stone pendant, and earrings made from the Malefic Dark Crystal. He is also seen carrying a jacket with the same color as his pants, but he is never seen wearing the jacket.

30th Century
The four members of the Black Moon Clan pass the Door of Space Time using their UFO to get to the year 2015 and retrieve a gigantic shard of the Malefic Dark Crystal in New York City.

The Last Starlight
In Tuxedo Mask: The Last Starlight, Rubeus arrived at 2015 New York City from the 30th century in the Black Moon UFO through the Door of Space Time. In their first mission, the clan hijacked a cruise ship in order to get energy from the gigantic Malefic Dark Crystal that landed near the Statue of Liberty.

Rubeus is informed by his compatriot Sapphire of the Death Phantom’s control over the group. Rubeus became aware of the Death Phantom's motives to the point where he attempts to assassinate the Death Phantom. His cover was blown, however, and in response, the Death Phantom sends Esmeraude to execute him.

Sailor Crusade
The spirits of Diamond, Sapphire and Rubeus are summoned once again by Calaveras when the store was attacked by the Shadow Galactica Legion. The spirits later joined the battle in the Second Sailor Crusade.

Trivia

 * Rubeus’s birth month corresponds to ruby being the birthstone for the month of July.