Hades

As ruler of Helheim and one of the many potential participants in the Titanomachy and Ragnarok, Hades is incredibly powerful. Like his younger brother, Poseidon, he is a fearsome and dangerous god in his own right, so much so that even other gods feared invoking his wrath. During the Gigantomachy, Hades single-handedly defeated an entire army of Titans, though he was ultimately severely wounded, implying that it was a very difficult battle even for him.

Hades appears to be a very comfortable and calm individual, although also a highly respected and feared god in the Greek Pantheon, as seen when Ares immediately gives up his seat to his order and when all the gods stood up upon seeing him enter the arena.

Above all else, Hades seems to love all his younger siblings and firmly believes it is his duty as the eldest to watch their backs. Furthermore, Hades also believes it is his duty as the eldest to avenge his younger siblings should they ever die, as demonstrated by his journey from Helheim to Valhalla to participate in the seventh round of Ragnarok, all to avenge Poseidon, who died in the third round.

Despite being king, Hades believed that Poseidon was the god most worthy of the title.

Although Poseidon's death was the motivation for participating in the Ragnarok tournament, he did not let himself be blinded by rage and hatred; instead, he remained level-headed and maintained his composure from the beginning of his fight.

In fact, the only time he lost his temper was upon discovering that his opponent, Qin Shi Huang, shared a similar view of kingship to that of the late Poseidon, to which Hades responded with a howling laugh at the irony. He also came to genuinely respect his opponent's abilities as a warrior and as a king. He described the curse that had isolated Qin Shi Huang for his entire life as an unfortunate plague, implying that he would never inflict such a curse on an enemy.

Like his younger brother, Hades' appearance takes the form of a tall, handsome man with a specially designed patch over his right eye and long, elegant silver-white hair that stands up in several places on his head.

She is shown with a leaf tattoo on her forehead, a spiked choker, and a beaded earring in her left ear, along with several small piercings. Her attire is quite formal and extravagant, featuring a high collar that reaches her chest and ornate badges on either side of her coat. Finally, she wears long white jeans and square-patterned shoes.