MAYHEM in the Underworld? Yes YEs YES

[The constellation "God-father" is smiling broadly and wickedly.]

In the Underworld, above a land owned by a branch family of the House of Naberius.

A handsome young man with black hair and blazing blue eyes flew in the sky. One could get lost in the deep but mysterious black wings on his back while the blood red in them was complemented by the red of the sky in the underworld.

Luzifer had come.

"You look so cool, nya~"

Kuroka was standing to his right. She had teleported them to the underworld with her high comprehension of Space-magic. Normally one wouldn't do that but because of obvious reasons they couldn't use the "trains" that the visitors to the Underworld would normally use. They would be taken as enemies, but that was the point of this whole thing to begin with since they were going to murder quite a "few" of these devil's.

"Our Lord always looks cool, nya~"

Suddenly, a third voice came from behind them. Kuroka hadn't felt anyone there till a second ago, and there was no trace of teleportation or space-magic being used. She instantly turned around and prepared for a fight, but didn't attack, the reason for that was what that person had just said.

And the moment she caught sight of that person, she lowered her arm which was ready to cast, while being confused a bit. Before her eyes was a beautiful white haired cat-girl who was kneeling. She was kneeling towards Yami who was still looking down upon the cages where Nekoshu were kept.

"Reporting; Everybody is ready, nya~. Sinon, Leafa, Alice and the rest of the Shadow Foxes have spread out, no person will be able to escape. Esdeath and Tsunade are overseeing everything while Mikasa, Asuna and Raphtalia asked for permission to take part in the killing as well."

"Permission granted. Our goal is freeing all the Nekomata the Devils captured and killing every single one of the Devils, no witnesses, no survivors. You will be given a special mission."

"Understood!"

Hanekawa disappeared. Even with her skills, Kuroka would have had a hard time finding her if she hadn't concentrated on it. Her skills in concealing herself were first rate. This meant that she was able to even somehow suppress the live-aura which Kuroka could sense with her Senjutsu.

"My mate is even more popular than I thought, nya~"

Kuroka had a glint in her eyes. She could feel the reverence, affection and love in every word from this girl and her senses told her that there were a lot more of these women who wanted to be the mate of her mate.

"We will leave that for later, at the moment we should focus on saving your people."

Yami pointed down. There were a lot of devils and several high class ones, but no one near ultimate class level.

Just like what these assholes did to Kuroka and Koneko, they had also captured more Nekomata in order to experiment on them after their first subject got good results and the second and first subject escaped from them before they could continue their research on Super-devils.

Kuroka had caught wind of that and had attempted to stop them on her own. However, there were just too many, and her exhaustion and injuries from running away constantly seemed to not be something that could be healed within a few days of resting. Also, there were just too many, although she was already near ultimate class or even almost in it, fighting against over a hundred Devils and dozens of high-class ones at that wasn't easy and she decided to retreat. Otherwise the Nekomata would have been caught up in the fight and this wouldn't have gotten a good ending.

Of course Kuroka had severely injured and killed a lot of them and they were still on guard. Also, they were planning on moving the captives to a better location and if that didn't go well, kill them all. What they were doing was highly illegal, it could even spark a war between the devils and the Yokai-faction, thus they couldn't leave any traces behind.

"Move!"

The devils opened the cages and forcefully put shackles on them.

"Get the fuck moving!"

One of the high class devils with gray hair commanded with a very rough tone. He would rather just kill all of them and get the heck out of there, but he had orders and he knew that he needed to comply with them.

"Ah!"

One of the Nekosu fell to the ground, she was injured by a spell during Kuroka's first fight. She tried to get up, but fell to the ground once again. She was young and had white hair, she somewhat resembled Koneko, but only by a little bit. But this alone made sure that Kuroka wouldn't let that asshole live.

"Get the fuck moving! You can't even more you fucking piece of shit? Fuck this! I won't fucking carry your disgusting animal body, I will just fucking kill you!"

The high class devil raised his hand to cast a spell. There was an evil glint in his eyes, he was very happy about being able to kill one of the beings he saw as "disgusting animals".

[The constellation "God-father" has decided that today is another Judgement Day and the last judement for this fucking digusting, fucking dumb, fucking fucking piece of shit!]

[Quest received: God's Judge

Objective: Kill the Devils from the Naberius branch family

Time: 30 minutes

Rewards: 3000 System Points + Adoration from the saved Nekomata.

Failure: God will personally exterminate the disgraces

Description: God really doesn't like these dumb lowly life-froms who hurt the two cute cat-sisters and decided that his Protagonist should carry out justice and carry out his will. By the way, no need to worry about any of these fucking rats escaping, no teleportation allowed. Have fun :D]

If the devils also had a system they would have also gotten a Quest right now; "Survive!!!!"

"Di-! Huh?"

The devil casted his spell, however, nothing happened. The white haired loli cat-girl also looked up at him, or rather his hand, or rather, where his hand had been.

"AaaAAAAHHAHHAHHHHHHHH!"

A fountain of blood sprayed out from the cut off hand, tainting the black feather blood red.

Before anyone could process what happened, a rain of deadly projectiles came flying at them. The weaker one weren't even able to do anything before their brains were pierced through, while the stronger ones, especially the high class devils were able to defend themselves. Still, they didn't get out without a scratch since it was a surprise attack.

"Up there!"

One of them shouted in panic. Everyone's eyes turned towards the place where two figures were standing in the air. Each person broke out in cold sweat as they saw the figure of a beautiful voluptuous black haired cat-woman; Kuroka. The person who had killed a lot of their comrades not long ago. But the person who was responsible for the attack was the person standing a bit in front of her. It was obvious since the feathers came from the night-black and blood-red wings of that person. All of their instincts screamed at them that they were going to die and that they needed to literally do anything and everything they could if they wanted to survive. The black hair of that person made him look really cool, but in their eyes he was just terrifying. Even his eyes looked as if they were blazing blue flames.

"FUUUUUCCCKKKKKKKK!"

The gray haired Devil screamed as he used his other hand to form a magic circle to attack the person who took his hand, no, this wasn't a person, this was a true demon. The pain in his hand was what made it even possible for him to recover this quickly. And after hearing the shout, all the others hurriedly created spells. They would need to take this reaper in human flesh down if they wanted to survive!

All kinds of attacks flew, but the place they hit was empty. The next moment, more screams echoed before they stopped and the sounds of bodies hitting the ground resounded. And without wasting any time, Kuroka began her assault as well.

With the Dark-Saber in hand, Yami cut through the unfortunate black haired man that was close to him, beheading him in an instant. Before the head could even hit the ground, the next fountain of blood started spewing.

Meanwhile he coordinated his feathers to continue attacking. He shot two of them exactly behind another, after they had defended the first one and relaxed a bit, exactly at that moment the second one would suddenly become visible. But at that moment it would already be too late.

He slashed left and right. Some of the mid-class Devils tried to engage him with their swords, but he just countered them, or simply evaded and stabbed through them. His speed was at a level where he could go toe to toe with Valina, the devils weren't even able to hit him.

"GET HIM!"

"KILL HIM QUICKLY!"

"HELP!!"

The voices were almost mad as they threw all the attacks they had at him, however, he just ran and dodged on the way. Running more left, then right, then jumping into the air and using his

wings while slashing through the heads he flew over.

Ten of the high class Devils grouped up and tried to attack him.

Suddenly the black spectre of death stopped for a moment and looked to the place where the Nekomata were grouped up, it seemed he had sensed something. Seeing this as an opportunity, the ten surrounded him while preparing their spells.

One came at him with a sword, two others attacked him with their magically enchanted fists while the others casted, it seemed that they weren't dumb.

Yami blocked the sword with his own while using his right arm to grab the first fist coming towards his face. He then throws the Devil into the other Devil to test their durability. And Ta-da, the one with the sword was just knocked back, but the other one was impaled by the sword. Yami had made sure of that. Now that he had his two hands free, he grabbed the last one.

The seven high class devils had finished casting their spells, but they weren't that strong since Yami had already defeated their front liners within seconds, but it was enough to kill a high class devil.

The wings on Yami's back formed a shield, while he held out the still alive Devil in front of him, making him into a human meat shield.

And he had to say; He was an adequate meat shield and nothing could take that away from him. "Sadly" he wasn't able to appreciate that since the spells had killed their own ally.

"WHAT THE FUCK ARE ALL YOU IDIOTS DOING?!!"

The gray haired asshole shouted, he was going mad, or maybe he already was as he shot more spells even though they only hit the poor meat shield.

Yami's strength wasn't his endurance, but since these weren't very strong spells and especially because of his regeneration, the assault just now hadn't really done a lot.

From all the sides, more Devils closed in. After seeing this monster being surrounded by their leaders they had a spark of hope.

"Die!"

The sword wielder had thrown the body of his supposed ally off himself and jumped at Yami. Since his blade was blocked last time he thought he had a chance since he attacked from his behind.

"If you do a sneak attack…"

Yami didn't even look or move, however, his defensive wings unfolded again.

"Don't scream!"

The wings cut through the air and slashed through the assailant from head to groin, making his two sides fall onto the ground in different angles as even more blood was added to the puddles all around.

[The constellation "God-father" has remembered the he had seen something similar with Cocytus. 100 Points have been sponsored.]

[Current System Points: 69 420] #Acutally it is 69 610 but someone wanted the double noice#

This was the first time they had heard the voice. Normally it would sound like a melody which would enchant the people, but to them, it sounded just like the gentle words a true Devil would speak before taking one's soul.

Having remembered Overlord and seeing the twisted face of the gray haired idiot, Yami got an idea.

Just as they wanted to cast their second barrage of spells, Yami shot towards the gray haired man whose expression twised even more, from anger, to fear, to being absolutely fucking terrifyed please don't kill me!

In a last ditch attempt, he drew a short-spear from his waist which had been given to him from the family head for his good services to the family. These "good" services were mainly illegal and criminal ones.

He thrust the tip at the black haired handsome man coming at him in a last ditch attempt.

The tip stopped just three centimetres away from Yami's face, between Yami's fingers.

"A good weapon…"

"Wha-"

Before he could process what just happened, or why this spectre of death had said such words, his body already moved and let go of the spear. If this spear was all it took for him to survive, he would gladly sacrifice hundreds of spears.

The next moment, the idiot felt a strong grip on his left ankle, the next moment, his word spun around and he was held upside down. And then, his world spun again, until…

"AAAAAAAAAHhhhWWWHHeheaaa!"

His face suddenly collided with another one's face, breaking his nose and making blood leak out of his mouth. But the next moment the human club was swung once again, this time his chest was smashed into another person's abdomen.

Jup. Yami was using him as a club. A very nice club.

The ones who were about to cast attack magic were stunned for a moment at seeing their comrade being swung around like a club. But the next moment he was swung their way and as their face collided with his head at absurd force, the neck snapped. Their commander was the strongest of the ones present, thus he could also absorb the most damage, but his face and body was already full of blood, his own and the one of the people whom he was smashed into.

"GRAAAAHHRRWWwaggggeaaaWGRAAAA!"

All his teeth were already gone and he wasn't even able to say any coherent words anymore, even his screams of pain weren't coherent anymore.

Seeing that their commander was being smashed into their leaders, the devil's panic finally reached the peak as they all scrambled to be the first person to get as far away as possible.

They pushed the ones before them to even get away just one step further one second faster. The ones who fell to the blood soaked floor were trampled into mice by their own comrades.

[The constellation "Meme-God" is quoting; "Well, that escalated quickly".]

They ran and ran and ran. One of the younger devils, a blonde haired low class one, fortunate enough to survive overcame his fear, used up all his courage and dared to take a look behind himself and what he saw…

The Demon who had attacked them wasn't following him. He was actually walking towards the place where the Nekomata had been kept. He could catch a glimpse of a beautiful black haired woman with two strange looking swords and a woman with raccoon ears who looked just as ridiculously beautiful.

This however wasn't at all what was going through his head; there was only one thought; I SURVIVED!

The Devil fell to his knees, put his hands together and prayed. He instantly got a head-ache, but this pain was nothing against the terror he had felt. Even though he was a devil, he offered a prayer to god, thanking him for letting him live.

"Thank-"

The kneeling devil's head-ache stopped. The next moment he saw his own praying body and then, his vision went black. The last thing he saw was a shining rapier, dripping blood and a strad of hazelnut colored hair.

"You know, I could have killed him as well…"

Asuna looked up at Leafa, who was flying with her wings not far away. Just like Sinon and the other Demi-humans she was going to kill all the devils who came near them.

"Even though you have indeed killed and I don't question your resolve, you don't want to kill. You still don't want to take a person's life. Yami and Sinon wouldn't want you to murder someone. The night after we destroyed Laughing Coffin, you ran away to puke all on your own because you didn't want to worry anyone, and you weren't able to even close your eyes the whole night. Don't think I don't know that. Don't worry, Yami and I will kill everyone, you don't need to stain your hands with blood. As Yami would say; Their lives are not worth the time you will spend thinking about the ones you killed."

After saying her part, Asuna ran towards her next "victim". Different from Leafa, she had her fun at the moment.

She, Mikasa and Raphtalia were given free hand, but they had the order to first save all the Nekomata before anything.

The reason why Yami had stopped was also because the girls had started freeing the cat-girls and he wanted to draw all the attention to himself. Of course a few had tried to stop them, but they were dealt with immediately. Raphtalia, Mikasa and Asuna were absolute killing-machines, beautiful, sexy, lovely killing-machines.

Just like Yami, they were between High and Ultimate class at the moment. Of course, some were stronger than others and because of their fighting experience they could easily take out enemies with whom others would struggle.

Yami would probably enter Ultimate class at level 20. And after the recent massacre, he had gotten quite a bit of EXP.

[You have leveled up.]

[You have leveled up.]

[You have leveled up.]

[Congratulations, you have leveled up. You have reached level 18.]

Yami was in a great mood, even though he had just murdered dozens, maybe even over a hundred people. But he didn't feel anything for them. Even as he did a "demonic" thing like using another being as a weapon, he felt nothing except fulfillment for copying a scene from Overlord and giving that asshole a horrible death. He was actually merciful since he didn't use healing magic or anything to keep that person alive, but just let him die.

"Every last one of them is saved, my lord. But I suggest we take them to Paradise since a few of them are seriously wounded, Tsunade-sama and Sachi should be able to take care of them."

He nodded, there were those who had been injured in the first fight Kuroka had with them. Speaking of her, she was busy taking out the last ones remaining together with Asuna and the other girls. She had used spells and attacked the devils while Yami drew their attention since this was the most effective method.

Only Yami could let others enter Paradise, thus he opened a portal and gave orders to Tsunade and Sachi, as well as others who could use healing magic like Senko.

There was one thing on Yami's mind however, which he concentrated on rather than the saved Nekomata, since it was something which caused him concern: The quest wasn't finished.

"Master, every single one of these pieces of trash have died. Not a single one of them survived, as you ordered."

Esdeath, who had overseen the battle, knelt down in front of Yami and delivered her report to her master.

This confirmed Yami's suspicion. The words; "Objective: Kill the Devils from the Naberius branch family" really meant what they said. At least he would have to kill all the ones in their mansion. But he also only had 30 minutes time. Although Hanekawa was already there for her special mission and he knew where it was, it was going to be very hard.

Also, if the fight went on for too long maybe someone else might notice. And coming into contact with a Maou right now would be disastrous!

(Has Hanekawa already finished her task?)

{Yes, she is currently waiting for you orders, my love.}

(Tell her to get out of there immediately. I will use my secret weapon. It's time for Excalibur to shine.)

Yami had made his decision.

"Saber, I need your help."

Saber hadn't been necessary until now and Yami wanted to keep her for emergencies, but it was the best course of action to take at the moment. Also, there are no witnesses if all of them are dead.

He of course knew that the unleashing of such power wouldn't go unnoticed, but since he was already part of the DxD plot, he didn't plan to go unnoticed forever.

"Everybody, back home."

Yami opened another portal and the Demi-humans orderly went through it after all receiving a head-pat from Yami on the way out. They were happy to be of use to their lord and they were also happy since they discovered that the leveling worked with killing the Devils as well. Especially since gaining EXP and higher levels within Aincrad took a long time.

"Saber, please use your Noble Phantasm."

Now, there was only Yami and the figure of a blonde knight in the middle of this blood drenched battlefield, no this wasn't a battlefield, this was a executioning ground.

He could see that Saber had a reaction towards this scenery deep within her eyes. It probably reminded her of the battle of Camelot against her own "son/daughter".

The two of them remained silent until two mischievous cats, one white and one black came towards them.

"Here, your order, master. Nya~"

Hanekawa gave Yami a stack of papers, pictures and other documents. Whatever may that be…

"What are you going to do now, nya~"

Kuroka asked. She was very curious about everything right now. Who were these people, why did Yami have wings with such strong feathers, what were these portals, and many more.

"Destroy."

"What do you mean by that, nya~?"

Yami didn't answer, but instead flapped his wings and flew into the direction Hanekawa had come from. Saber followed her master on foot, she didn't even break a sweat and caught up to him immediately.

The mansion which was Yami's target was no at all near the place where the Nekomata were held. The underworld was quite large after all. But with their speed, they reached it very quickly comparatively.

The two of them came to a halt not far from it, a few Devils had already noticed them and started moving.

(Will the Noble Phantasm suffice?)

{With you as her master, all of Saber's stats are already at EX rank. She is higher than ultimate Level, but no at the Satan level. But if she levels up, she can reach it fairly quickly. And the stronger your magic stat and the more Mana you have, the stronger she will get as well. It isn't the question whether the Noble Phantasm will suffice, it is the question whether the Noble Phantasm is too much.}

(And the answer is no.)

"Saber, I, Yami, your master, order you to unleash your phantasm and kill all of them."

Yami wanted to make a Lelouch reference, but in the middle he already noticed that it wasn't very suitable.

The next moment, a lot of Mana gathered all around Saber.

Then, her blade started glowing as she slowly raised it…

More and more golden sparks gathered around the knight and the Sword of Promised Victory…

She closed her eyes…

The golden color of the blade shined like the sun and the devils shrunk away before this holy energy as the mere sight of it made their eyes burn…

The blade glowed more and more as it was raised higher and higher…

The King of Knight's eyes opened...

She took a step forward…

She swung the blade down...

…

"EX-CALIBUR!!!!!!"

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