Final Fight Start

Cerberus are large, three-headed dog creatures around 10 meters tall. The body has thick legs, each with a set of sharp claws. Each head has a pair of red eyes and a mouth lined with sharp fangs. Additionally, each head can shoot balls of fire from its mouth.

ROAR

"He actually summoned a beast from Hell!! The Gatekeeper of Hell Cerberus," Rias nervous said.

"What!! This is the dog that guards the hell!!" Issei was shocked to see Cerberus for the first time.

Rias looked at Akeno and said," Can you do it?"

Akeno laughed," Fufufu ~ why not said, can we do it?"

"Olay lets for it! Koneko distract this dog first while we charging our power" Rias said

"Yes Buchou," Koneko then ran in front of Cerberus and punched it in his stock, then jumped and gave a huge blow in one of his head.

The middle head tries to bite him but Kiba grabs him to escape, after relisting Koneko, Kiba dash to cut one of Cerberus's head but there's someone to stop him.

"You can't do that Devil-kun ~" Freed playful said.

"Kiba, take him first, let us take this huge dog, don't worry , we can do it, '' Rias said.

Xin said," Hey Issie start charging Boost, help them later by transferring the power that you collect"

Issei nodded," Yes, Little Master!"

[ BOOST! ]

While Rias is currently charging power, The Cerberus breath flame at him, seeing this Akeno stop charging and erect a barrier to defend.

"Rias, continue charging power, Let me defend you for meantime," Akeno said while holding the magic barrier in front.

"Thank you Akeno," Rias said and continue to charge Power of Destruction

Cerberus another head opens its mouth and tries to breathe flame again but Koneko is much faster at him.

She used Touki to cover her whole body and punch the jaw of Cerberus before he even breathed fire.

BAM!

"Thunder!"

Akeno sued her thunder to paralyzed their opponent, Rias who just finished charging and released a devastating attack to kill Cerberus.

"Power of Destruction"

A large ball of Power of Destruction hit the Cerberus, the damage from this attack should not be deadly if Xin did not train and buff them while ago.

Cerberus' middle head evaporates, while the other head is heavily wounded.

Bam!

Cerberus the Guard Dog of Hell retired early in the battle.

Another magic circle appears again and New Cerberus appears and pounce on Xin and Issei who are just watching.

Issei who is about to intercept the angry Cerberus suddenly stop when he sees Melan make her move.

Melan who in her battle formally takes out Apolon and a black arrow then releases it to Cerberus who is still in mid-air.

SWISSHHHH ~

BOOOM!!

Because Melan minimizes the power of Apolon the Cerberus who just appears only heavy wounded and not disintegrate from the face of the earth.

Seeing his pet die like that Kokabiel made a light spear and threw it to Rias who was not prepared.

Xin hurriedly said," Transfer your power to me now!!"

[ TRANSFER ]

Xin stamped on the ground and said.

"Sword Birth: Sandalphon"

A throne carved with strange patterns suddenly appears in front of Rias, protecting him from the Light Spear.

Because of Issei's power, Sandalphon Throne Forme is much larger than the original appearance and not only that Xin adds his own power tool to make it more durable to withstand the attack.

BOOM!

Rias' scared silly look at the huge throne in front of him, a Throne that can withstand the attack of High-Rank Fallen Angel.

Xin walk and sit on the throne while looking at Kokabiel," You are really weak, even my own weapon can deflect your attack easily"

Kokabiel who also sitting in his throne don't know what his opponent did, he only see a throne appear to save Sirzechs's little sister.

Suddenly Valper who was just doing something shouted," It's done!!"

"It's finally done, the holy sword Excalibur finally combines into one!!"

They all see that all Excalibur really combine into a huge sword, but they notice that the power is unstable.

"We got a massive power after combining the Holy Sword, but in exchange, the power is so unstable that the ground of this town will destroy within 20 minutes" Vapler exited said.

"What!? The town is going to disappear," Issei was shocked, this is really a huge problem. His family is currently staying in this town.

"Hehehe you kids should run before that happens, after all, you guys can't take the damage that you will receive from the Holy Sword," Valper said.

"Then we will take the Holy Sword," Rias said.

Kokabiel said," Hehehe if you guys want to take it, then you need to defeat me first ~"

"Right, Kid?" He looks at Xin who is casually sitting on the throne. He doesn't know why he starts to feel nervous right now, but he can't back out now. If he wants to start a war he needs to make the move to start it.