|Alias||Valuable Knight (最優の騎士 Saiyū no Kishi)|
|Nickname||Yuri (ユーリ Yūri)|
|Age|| 22 (Arc 5+)|
21 (Arc 3-4)
|Hair Color||Light Purple|
|Height||179 cm (5'10")|
|• Professional Status•|
|Affiliation|| Kingdom of Lugnica|
|Previous Affiliation||Fang of Iron (temporary)|
|Occupation||Royal Guard Knight|
|• Personal Status•|
|Relative(s)|| Klein Juukulius (father)|
Alviero Juukulius (adoptive father/uncle)
Joshua Juukulius (relative)
|• Abilities and Equipment•|
|Magic||All Six Elements|
|Divine Protection||Gathering Spirits|
|Light Novel||Volume 4|
|Japanese Voice||Eguchi Takuya|
Julius Juukulius, pronounced "Yulius Yuukulius", (ユリウス・ユークリウス) is Anastasia Hoshin's knight.
Julius has yellow eyes and light purple hair that is arranged neatly with a strand hanging down his face. He wears the Royal Guard uniform.
As a member of Lugnica's nobility, Julius acts in a proper fashion, always having an air of nobility and conviction. He is also considerate and doesn't forget to show care toward others. He also shows a strict side, giving out accurate assessments of others whether they're good or bad, which is a result to his upbringing as an elite, and in actuality he believes that he and others can do better than they currently are.
Julius doesn't like those who forget their place, leading him to have bad relations with Subaru for a while. While both have apologized to each other after the battle with the Hakugei, Subaru told him he still hated him, with Julius stating that he didn't think they could be friends.
Currently, Julius has had his name eaten by Roy Alphard, effectively erasing his history from the world.
Spirit User (精霊使い): Julius was contracted with six Quasi Spirits. They were known as Ia (イア, red/fire), Kua (クア, blue/water)、Aro (アロ, green/wind), Ik (イク, yellow/earth), In (イン, white/Yang), and Nes (ネス, black/Yin). His contract with them was severed when his name was eaten. As Julius is also a knight, he prefers to be called a Spirit Knight (精霊騎士 Seirei Kishi).
Master Swordsman: Julius is highly skilled at sword fighting.
Magic: Julius is able to use all six elements though he isn't as strong as Roswaal.
Divine Protection (加護 Kago): Julius has the Divine Protection of Gathering Spirits (誘精の加護), which enables him to see, talk, and be liked by Spirits, though he has to work hard to actually get liked by Spirits.
Shaknar (シャクナール): Shaknar is Julius' beautiful blue Earth Dragon. Despite forgetting who Julius is, it still accepted him due to its training.
- According to the author, Julius's birthday is July 7, and his birth flower is a Nymphaea, or water lily.