Diabo El Caesar
Diabo anime
Character Information
Romaji Diabo
Biographical Information
Race Human
Age Unknown
Gender Male
Relatives Molt Sol Augustus (father)

Zorzal (half-brother)
Piña Co Lada (sister)

Status Alive (anime, manga and light novel)
Deceased (web novel)
Professional Information
Job(s) Governor of Alnus
Rank Prince, Governor
Affiliation Empire, People's Republic of China (former)
Location South Palace

“Who cares about that? I am everything to me! Without me, there’s no point in this world! A world that treats me unfairly and refuses to acknowledge me can go die in a fire! Alright, isn’t there someone who’ll use me? I’ll do anything!”
Diabo express his mad desire for fame and acknowledgement even is mean becoming someone's puppet or making despicable acts.
Diabo El Caesar is the second prince of the Empire, the brother of Zorzal and Piña Co Lada as well as one of the possible heirs to the throne.

Diabo is voiced by Yuichiro Umehara


Diabo cares about his sister a lot. He will do anything to be the next heir to the throne because he thinks his brother is just an idiot, which is very true. However, as Piña describes her brother, Diabo tends to overthink things and tends to be paranoid where he once thought that Piña wanted the throne when she had no such interest. Like Pina and Molt, he is one of the most intelligent, realistic and pragmatic member in the family and is shown to be more foresight than the rest of his family due to his overthinking. He is smart enough to know that the JSDF's tremendous power can make Pina to be Empress easily due to her cooperation. Therefore, he tries to get others powerful nations beyond the Gate to even the odds against her sister.

Despite being highly intelligent as Pina and Molt, he is very egocentric, very much like Zorzal thinking that he is the only one sufficient enough to rule the Empire and no one else can take that right from him. However, a stark contrast to Zorzal, his egomania stems from the poor choice of Molt in choosing a successor as he sees that his father was irresponsible for giving the Empire for a fool like Zorzal to ruin it to the ground as well as years being neglected by Molt and almost everyone else in the senate throughout his life. As the result, he develops a massive inferiority complex, which cause him to do anything to become Emperor in order to be someone worth-to-be-noted in the whole Empire rather than an non-existent member of a royal family, even it mean selling the Empire to Japan as vassal state.

“I won’t believe you anymore. In order to become an Emperor, I’ll need a great deal of military might, and you haven’t brought that with you. And you even tried to destroy the Gate. I will obey Her Holiness and become the puppet of Arnus’ townsfolk. I will become the regional governor of this territory. That’s a more realistic goal.”
Diabo being rational toward Rory's demand and rejects Liu's false promise as he is finally pushed in a corner without any other alternative.
In spite of his lust for fame and power, he is rational and pragmatic enough when he is cornered as he willing to become a governor of Alnus after Rory Mercury persuades him in a threatening manner.

After crossing the gate to prevent Japan from closing the gate, he becomes one of the people in the Empire along with Pina to realize that there are far more powerful nations than Japan in another side of the gate in particularly US, China and Russia. However, he prefers to be an ally with Japan since he realizes that the price to be the alliance with superpowers like China, US or Russia is too high due to the fact that he foresees that the Empire will be colonized; the monarchy will be abolished and the natural resources will be stripped mined if one these superpowers came through the gate. As the result, he sees world superpowers behave just like the Empire but in the different way.

He is shown to quite generous to his servants and care for their safety as shown when Zorzal took over the Empire, Diabo dismissed all of his attendants and rewarded them handsomely by letting them taking whatever they like in his estate.


Diabo has long blonde hair. He wears clothes of a noble and has an aura of a noble around him.


Diabo was born as the second prince of the Empire and second line in succession. Despite being one of the smartest members of the family and capable successor to the throne, he lived a life of being neglected by his father and almost everyone else in the Empire due to his second-rate born. His neglectful childhood makes him develop the desire to be acknowledged.

He had plans to eliminate Zorzal and Piña as competitors by allying himself with someone else beyond the Gate.


He first appears talking to his brother, Zorzal, regarding the throne. When Zorzal claims that he will be the next emperor, Diabo warns him that their father doesn't really trust him.

When Zorzal forcibly took the throne, Diabo was quick to liquidate his holdings and prepare to leave the capital. It was his plan to gather supporters from the Superpowers to help him retake the throne.

He eventually found his way to Alnus, where he learned of Japan's plan to close down the Gate due to the catastrophic consequences of leaving a space-time continuum rift open too long. He didn't believe in the seriousness of the situation, thinking it a ruse by Zorzal, despite a goddess confirming of the impending dangers. He conspired with other citizens of Alnus to find a way to prevent that scenario from happening as, without the JSDF, Zorzal would be unopposed. They sought to contact the other powers from across the Gate to prevent Japan from shutting it down. As the result, he manages to make a deal with China to delay Japan from closing the gate. During this time, he learns that Japan is not the world Superpower and the others nations has far more powerful military than the JSDF. Therefore, he intends to hand Lelei to the Chinese in exchange for 10,000 heavily armed Chinese soldiers to kick the JSDF out the way and decimate Zorzal's force as well as taking the throne from Pina.

After the international sabotage of the Gate, his scheme of using China to leverage himself into the throne and stop Zorzal is exposed but he manages to redeem himself and becomes the Governor of Alnus.

Skills & Abilities

  • Administration: Diabo is a skilled governor as he manages to make Alnus a prosper democratic state after the Gate closes, making Rory Mercury to constantly extend his governor's term.
  • Farsightedness: The strongest trait of Diabo is his extreme farsightedness since he managed to correctly deduct the grave consequence of Molt in choosing a moron like Zorzal as successor as well as even managing to figure out the existence of Superpowers just by analyzing the Pina's advantage of having the JSDF as her allies.
  • Charisma: Like Pina, he possesses a vast amount of charisma to convince the people of Alnus to listen to his proposal of stopping the JSDF from closing the Gate.



  • He and Pina are the only person in the Empire that makes contact with world superpower on the other side of the gate.
  • In the web novel, he is killed by a Chinese agent when the bomb planted near the Gate explodes.
  • Pina Co Lada admits that Molt should have chosen Diabo as his successor rather than Zorzal.