A large beast with characteristics coming from different animals like a lion, a leopard, a bear, a dragon, etc. It has seven necks, seven heads, with ten horns, as well as seven long thick tails of different shapes. It also has four stout arms and two legs that are even thicker than its arms. Its main body is that of a primate leaning forward and is covered in black fur and what appears to scale all over its body. Its size is well over several hundred meters.

"T - Trihexa....."

Everyone had obviously heard about this monster.

(Trihexa) or known as the Apocalyptic Beast and Emperor Beast of Apocalypse which was famous for its apocalypse story appeared within this place.

"ROOOAAARRRRRRR!!!!"

Its large size alone caused everyone to feel that their legs had gone soft. They couldn't imagine what kind of creature was able to defeat this monster.

The leader of each of the factions was surprised when they saw it, but they also realized another matter and that way they couldn't let this monster escape from this place.

"We can't let it get away!"

"We need to defeat it as soon as possible!"

They knew very well once this thing had escaped, the consequence might be unimaginable!

Hearing the words of the leaders, some of the small fries gulped their saliva and if they couldn't defeat this beast, then their family might be affected and worse case die.

It is all or nothing!

"ATTACK!!!!"

Everyone used their magic at the same time toward 666.

"ROAAAAARRRRRRRRRRR!!!!!!"

Back again to Azazel who tried to coax Lilith to let him enter with a lot of sweets.

Lilith kept eating her snack until she realized that Rivezim had lost his life. She was quite confused for a moment and said, "Rivezim has died, what am I going to do?"

"The answer is simple, just follow me!" Azazel smiled and said, "You can meet with Opshi and you can also eat a lot of sweets too!"

"Really?"

"Yes!" Azazel nodded and said, "Rivezim has died and no one stops you from following us or eating a lot of snacks."

Lilith thought for a while and nodded.

Azazel sighed in relief and also felt a bit surprised when she knew that Rivezim had lost his life, but then again, he also felt that it was an inevitable result. Lilith didn't stop him again, and he could enter the room.

Entering the room, he was shocked when he saw the thing that was kept inside and thought that Rivezim was crazy to bring this thing here.

"666...." Azazel knew that he needed to seal it right away and thought to contact Rossweisse, but then the seal which sealed the body of 666 suddenly was released one by one. His heart was trembling and he tried really hard to stop it, but there was nothing he could do. He held his head for a while then noticed Lilith who was looking at him curiously.

Then the seal on the 666 was broken.

The red eyes on seven heads were looking at Azazel.

Azazel felt a shudder then brought Lilith to run away from this place as soon as possible.

"ROARRRRRRRRRR!!!!!"

BOOOOOOOOMMMMM!!!

released a breath of fire destroying its surroundings, burning it and smashing everything around into ruin before it destroyed the ceiling to appear on the surface.

In front of the combination attack of the alliance's army.

Trihexa only opened one of its mouths then fired a powerful fire breath.

Burn!

"ARRRGGGGG!!!!"

"HELP!!!!"

"NO, I DON'T WANT TO DIE!!!!"

Some of the unlucky people were burnt to ashes then died.

But then Srafall created a wall of ice in an instant blocking the ice, however, the temperature of the fire was so hot that it caused the ice to melt.

"What?!"

Everyone was surprised the ice of Serafall, who was known as one of the four Maou, was melting because of the fire from 666.

"Everyone moves back! We'll handle this!" Sirzech shouted.

The leader from the fallen angel, angel, devil, Norse myth and a lot more gathered together to face this monster.

Sirzech released his true form and his body had turned into a power of destruction itself. Even though he was famous for his power, the people in his surroundings didn't even look at him since the pressure that was brought by 666 was bigger than him.

Michael, Baraqiel, Serafall, and a lot more also gathered their magic together.

Azazel had a Lilith on his arm thinking about a strategy on how to defeat this beast.

"Sensei, what is this? W - What the hell is this monster?!"

Issei brought his parents running along with everyone toward Azazel. They thought the battle would be over after Vali had defeated Rivezim, but then another thing came out once again and this time it was several times stronger than anything that they had faced before.

"It's 666," Azazel said simply.

!!!!

Everyone was shocked when they heard it.

"I - Is there something that we can help?" Rias asked.

Azazel shook his head and said, "No, leave everything to your brother and everyone."

"......"

They gulped, then looked at 666 again feeling a fear deep into their heart.

Everyone was ready to send out their strongest magic toward 666. Even if Agreas might be destroyed, they needed to stop this beast no matter what!

Among the crowd was one person aiming his spear toward 666.

"O Spear. The true Holy Spear which pierces through God."

"Suck the ambition of the King of Domination sleeping within me and pierce through the gap of blessing and destruction."

"You. Announce the will, and turn into a glow."

His voice wasn't loud but caused some people to look at him.

"Cao Cao!"

Issei along with everyone was shocked, but even though they were shocked they were happy when they saw that Cao Cao would help them to face this monster

Then without waiting everyone sent out their strongest magic at the same time.

"Truth Idea!"

"Celsius Cross Trigger!"

"DIE!!!!!!"

Their strongest magic was moving at the same time attacking the huge body of 666.

BOOOOOOOOOOOOOOMMMMM!!!!!

The ground was shaking, the earth was almost destroyed in half, the shockwave caused the small fries to blow away, mushroom cloud, a huge explosion.

But no one said anything. The atmosphere around them was solemn waiting for the dust to disappear, but then they were startled when they saw what had happened.

The 666's body was destroyed, but it regenerated at the fastest speed before it returned back to its previous appearance.

"ROAARRRRRRRRR!!!!!"

Hearing that roar, it caused the spirit of some people in this place to break, but at the same time, they needed to destroy this opponent as soon as possible.