Ivis Necron

Ivis Necron (アイヴィス・ネクロン) is one of the Seven Demon Elders created by Anos Voldigoad.

Appearance
Ivis looks like a skeletal mage. He wears a robe that covers his entire body and a headpiece with side ornaments, leaving only his skeletal/mummy face to be seen. He doesn't look to have a bottom jaw and speaks through a jaw-mouth ornament on his chest.

Personality
Ivis is quite smart, as he was capable of developing complex fusion magic.

Like his fellow Demon Elders, he is nothing but absolutely devoted to his creator and master, the Demon King of Tyranny.

History
2,000 years ago, Anos created 7 demons from his own blood, which would later become known as the Seven Demon Elders, among which was Ivis. After Anos's sacrifice, the seven co-operated with the Hero Kanon to create the fictional Demon King Avos Dilhevia with the intention of diverting humanity's hatred of Anos when he reincarnated. Kanon then fused his sources with 6 out of the 7 Demon Elders, including Ivis. Since they could not lie to Anos, Kanon erased their memories so that if they ever came in contact with Anos after reincarnating, he would not know of their plan.

When Sasha was inside her mother's womb, Ivis cast the spell Separation and Fusion Reincarnation Dino Jixes on the fetus to create a powerful vessel for the Founder to reincarnate into.

Demon King Academy Arc
Ivis appeared as a guest lecturer in Anos's class to teach them about fusion magic. After being introduced, Anos greeted Ivis like an old friend despite being warned by the teacher to behave. Ivis wondered who he was, but Anos got closer and used memory restoration magic on him with no success. Anos then used Origin Magic Rivide to turn back time on Ivis, causing him to remember his past, but Anos was not in it. Ivis thanked him for what he did as he learned that there was someone who could oppose him.

Anos got back in his seat and Ivis continued teaching about fusion magic. Ivis was then informed by Anos that the magic circle on fusion had a flaw, and when he fixed it, the duration of the spell increased several hundred times more. Ivis couldn't believe that someone had studied fusion magic before him, but Anos explained that it was all Ivis' work, and he was just seeing it for the first time. Ivis then told Anos that there was nothing he could teach him and wondered why he was even in the school.

After class, they spoke, and Anos that explained someone had changed the name of the Demon King of Tyranny and also erased Ivis' memory. Ivis conceded that what Anos said might be true, but at the same time, Anos could also be the one who had erased his memories. Because he couldn't fully believe Anos at the moment, Ivis decided he would remain neutral towards him because something about Anos was familiar.

On the night of Sasha and Misha's birthday, Ivis appeared to stop Anos from helping Misha, which would disrupt his plans since she was supposed to merge back into Sasha. Because Anos tried to change the past in order to help her, he caught the attention of the guardian god of time, Eugo La Raviaz. Eugo then fused himself with Ivis, giving him his power over time so that he can defeat Anos. In the end, Anos destroyed the sources of Eugo La Raviaz and an unknown source, discovering that Ivis' source was still intact, so he cast Ingall to revive him. Anos then gave Ivis his memories of him and tasked him with investigating the remaining Seven Demon Elders in secret.

Demon Sword Tournament Arc
When Anos was nominated for the Demon Sword Tournament, an event that normally wouldn't invite mixed-bloods, he secretly called for Ivis. They met up at the Cat Cafe "Silver Vine Restaurant", with Ivis under his cat disguise, and he reported back what he knew about Unitary's unseen leader and the Lognorth Magic Hospital. Ivis was then tasked to find more about his fellow Demon Elder Melheis Boran and the circumstances behind Anos' nomination.

Right before the start of the first round, Ivis was able to report back about the involvement of the Demon Elders Gaios Anzem and Ydol Anzeo in the tournament behind the scenes, and also about Lay's mother, who was hospitalized at the Lognorth Magic Hospital.

Hero Academy Arc
On the first day of the academy exchange, Ivis met with Anos to bring him an urgent report. The remaining three Demon Elders disappeared from Dilhade and were seen entering to human capital of Gairadite. Ivis also told him that after he arrived at Azesion, he overheard the humans talking about the "deep darkness", a legend that seemed to be about the reincarnated Demon King of Tyranny. Before being dismissed, Anos told him to chase after the missing Demon Elders.

Many days later, when "Avos Dilhevia" declared war on Azesion, involving the citizens of the present in a war from 2,000 years ago, Anos gathered his friends and close aides. Ivis was among the four Demon Elders who were on Anos' side, and they followed him to where Avos' army was stationed at. While Anos headed towards the main castle, Ivis and the others stayed to fight the other three Demon Elders who sided with Avos.

When Jerga, the mastermind behind the Hero Academy and the reason why Kanon had to go to such lengths to protect Anos, resurrected; he commented on the pitiful state of the demons from now compared to 2,000 years ago. But Ivis reappeared to say that demons haven't gotten any weaker and then used Dino Jixes to return his two descendants back to their proper form, Aisha Necron. Aisha was then able to stop Jerga long enough for Anos to come back.

When everything was over, Anos teleported everyone back to Dilhade.

Abilities

 * Great Magic Power: As one of the Seven Demon Elders, Ivis possesses a large amount of magic power, with his strength being acknowledged by most demons of the Magical Age. He was effortlessly able to defeat and restrain Sasha and Misha, two demons from the magic age who are considered very powerful in their own right.
 * Shapeshifting: Ivis has been shown to be able to turn into a Ural Owl or a black cat.

Magic

 * Dino Jixes
 * Je Gum
 * Je Izem
 * Gijel
 * Gazelta

Equipment

 * Demon Sword Gadol

Anos Voldigoad
Ivis remained skeptical of Anos when he told him that he was his master, the Demon King of Tyranny. Although it was possible that Anos was telling the truth due to his abilities, it was also possible that Anos was the enemy who erased his memories.