Yzak

"It's alright. Just do what you want to do, the way you want to do it. It doesn't matter if you're crazy or not. If you want to deceive, lie; if you want to envy, be jealous; if you want to obsess, do it. If you die miserably because of it, then that's what you really want, isn't it? I don't call it living if you live peacefully while pretending to be something you're not."

- Yzak

Yzak (イザーク), also known as the Living Disaster (災人), is the Chief God and Sovereign of the Disaster Abyss World Evezeino.

Appearance
Yzak has blue eyes and hair reminiscent of a lion's mane with frost bits at its end. He has sharp, ferocious fangs and a beastly expression. He wears a white uniform.

Personality
Yzak acts according to his cravings and lives to satisfy his own desires. He is very eccentric and as whimsical as one can get. He is ferocious and wild but is self-aware of the fact that he's viewed as crazy. His do-what-you-want-to-do mentality is what makes him such an unpredictable wild card.

History
Yzak is both the Chief God and Sovereign of Evezeino, which is likely possible due to his unique nature as a half-god, half-demon. As a calamity that destroys the world on a whim, Yzak possesses enough power to be considered one of the Inviolable Waters. He led his world in numerous battles against the Holy Sword World Hayfolia, whose world and inhabitants were fundamentally different than his. Whereas Yzak and the phantom beasts were driven by irrational craving, Hayfolia's noble hunters were driven by irrational righteousness. Yzak battled its Sovereign, the legendary Holy King Ordov Heinriel, and gained a begrudging respect for him.

It's believed that he lost interest in the world a long time ago, and fell asleep since that was his strongest craving at the time, though he will awaken when someone that could stimulate his craving appears.

However, the truth is that Yzak went to sleep after making a promise to Ordov. When Ordov realized Evezeino was alive and would move to devour Hayfolia, he tried blessing Evezeino with Eife's authority, but Yzak drove them back. An injured Ordov would allow Yzak to take his head, questioning the path he took. He wondered if the Rainbow Path, which guided Hayfolians to hunt the phantom beasts, was really the embodiment of their conscience as it was told. If Hayfolia's blessing could quench Evezeino's craving, wouldn't it mean the same powers are at work? Then, were Yzak's cravings really his? If he was right, it would mean they were wrong all this time.

Intrigued, Yzak went to sleep in order to weaken Evezeino's order and stop its craving, giving Ordov the opportunity to find the true Rainbow Path and change Hayfolia. When he wakes up, the two could drink together if Ordov was right. Afterward, Ordov hid him in a temple in Hayfolia. Towards his old age, Ordov would send Yzak back to Evezeino with the Two Laws Tyrant Noah's help, realizing how foolish his dream was.

Disaster Abyss World Arc
During the infiltration of Evezeino's Phantom Beast Organization, Anos finds the frozen Yzak in their research tower with a magic circle thawing the ice out. He finds it odd since Evezeino's public stance is to prevent him from waking up. It's later revealed to be the work of Naga Arzenon, who did so because their world would become unstable without the Chief God. As a result, a meeting between the Six Upper Academies will be held in a few days to discuss their next course of action.

Holy Sword World Arc
However, Yzak awakens ahead of schedule and crashes the meeting, demanding to see Ordov because of a promise. Ordov's successor, Lebrahard Heinriel, informs him that Ordov has retired and is currently traveling the shallow worlds, so it will take time to contact him. Yzak decides to destroy Pablohetara instead to get his attention, but Anos blocks his punch and introduces himself. Yzak recognizes him as the Lion of Destruction Naga told him about, so he has a fistfight with Anos. After testing his strength, Yzak leaves with Naga, giving Pablohetara three days to bring him Ordov or he will destroy Hayfolia.

Anos and Arcana visit him in Evezeino to ask about the promise, but Yzak doesn't tell him. However, he becomes interested when Anos reveals his knowledge about Yzak being hidden in Hayfolia. After teleporting them to Naga's ship, Yzak tells them that Evezeino is moving to Hayfolia on its own, like a hungry beast toward prey. He tells them that Ordov realized the same thing, but refuses to talk about the promise until he sees Ordov. Hayfolia's Hunting Nobles appear afterward, causing the phantom beast to fly toward them and Evezeino to accelerate.

If the Disaster World is truly alive, then Anos will try to communicate with it, but Yzak claims that he IS Eveizeino. Anos refutes this, as Yzak is waiting for Ordov while Evezeino is clearly accelerating toward Hayfolia, a conflict of interest. Yzak concedes that something else might be running the Disaster Abyss World, but he would know since he knows everything in Evezeino. He will show Anos around, only after Ordov comes, which is not possible, so a fight breaks out.

Yzak is unaffected by Anos' spells, as they freeze before they can touch his source. He counterattacks by empowering his claws to maul Anos and tear open the sky. Because the claws froze before they could damage Evezeino, Anos deduces it's the same phenomenon. The two continue trading blows until Yzak grabs Anos and kills him. Anos revives with Ingall and then uses Gilieriam Naviem to strengthen his spells. After figuring out Yzak's authority, Anos sends a Deepened Raviaz Gilg Gaverizd to the past, bypassing his authority as he had already taken the blow.

Weakened, Eife arrives with the Hunting Nobles and traps Yzak in a spherical rainbow. But before she can bless him, Balzarondo blocks the beam, intending to honor his father's promise. Yzak then watches as Balzarondo struggles with his conscience, as Eife shows him his Rainbow path, which leads to Yzak and not her.

Abilities

 * Frozen Prison of Calamity: Yzak's authority, which freezes all future possibilities of fatal damage occurring to his source or his world, Evezeino. If the possibility of damage occurring to his source arises, that future is instantly frozen. However, it cannot freeze magic that has no potential to be dangerous to his source, or events that have already occurred in the past. His order also freezes the raindrops that fall into the Abyss of Craving, suppressing its power and preventing Evezeino inhabitants from succumbing to their cravings, thus keeping Evezeino in order.
 * Immense Magic Power: Yzak's magic power has a cold nature surrounding it that even slight contact, is enough to freeze one whole. Additionally, as the Chief god and Sovereign of his world, he is in possession of near-bottomless magic power and he was acknowledged as one of the Inviolable Waters, a group of extremely powerful beings that are renowned across the Silver Water Holy Sea for their power, making him possibly the most powerful Chief God in the Silver Water Holy Sea. He demonstrated enough power to fight Anos Voldigoad on par, and later fighting against Lay Grandsley, a powerful misfit who was wielding a reforged Evansmana, and Balzarondo Freneros, who is one of the Five Holy Nobles. Even without the power of his authority, he still possesses immense power, as demonstrated when Arcana sealed his authority with her own, as he was able to easily overwhelm her despite that.
 * Conceptual Existence: Gods maintain and embody the order and laws of the world.

Ordov Heinriel
Originally, Ordov and Yzak were hostile to each other and arch-enemies, as their worlds battled numerous times over the years, and the two personally fought each other countless times. However, Ordov gained some measure of respect for the Living Disaster, as he told him about his hypothesis about Evezeino and his desire to find the true Rainbow Path. After Yzak went to sleep, Ordov desperately tried to find the true Rainbow Path in order to convince Yzak that they did not need to be enemies, but was disappointed in himself for being unable to find it. When Ordov was on the verge of being reincarnated, Yzak came to visit him, bringing the bottle of alcohol that he promised to bring in case that Ordov found the true Rainbow Path. Ordov was pleased to see him and told him that their paths don't diverge. It is noted that their relationship heavily parallels the relationship shared between Hero Kanon/Lay and Anos, with the two going from arch-rivals to friends over the course of their battles.