The very best.

The sun saw shining down on the land as the clouds were drifting on the sky, it's your typical beautiful day that makes people want to take naps. But it was a different story for the Empire.

Today, the atmosphere of the Empire is worse than ever. It was like a gloomy cloud of despair, fear, and rage was upon the capital.

This day is a dark day for the Empire as it lost the greatest general it had for years, general Budo. The general that guarded the Empire and one of the most respected figures is now dead.

After hearing the noise from the palace, the guards rushed to the training grounds, but they found the general gone before they saw the thunder clouds appearing from a distance. The assassination squad with a lot of soldiers rushed to the scene, but they were too late.

General Budo was found dead as his body was split in two by a sharp sword which made the Empire completely shocked. The great general lost and from the battle scene and Budo body, the battle didn't seem to be big, which means the general lost easily. This fact made most of the brains in the Empire scared even the prime minister dropped his plate of food when he heard the report.

Even if he didn't like Budo, Honest know the strength of that man, which he never dreamed about him losing easily. Honest realized this event that is happening now is very serious and can't be delayed like usual, so even if he didn't want to do it. Honest sent an order to Esdeath to return and use everything it could to rush to the Empire at the fastest speed.

Honest know even if that woman will be angry, she'll also be interested after she hears about Budo's death. But this leaves a question. Who did it? After a few investigations, the guards found that people were killed in the palace with no one knows about them, which means it was the works of the killers.

But how can a bunch of killers able to take down the Empire great general with their powers? This question confused the Empire for a day before they reached a conclusion. It was Night raid.

Only a group of killers armed with Teigu have a chance of defeating Budo. This made most of the army and the soldiers that were under general Budo and most of the people that respect him angry. They even gathered forces as they wait for the general Esdeath to launch a total attack on the revolutionary army.

Honest saw all that happening, but he said nothing as this was beneficial for him, even if he wasn't feeling quite right about the Night raid killing Budo. But he didn't have another target to blame or a reasonable theory that explains why Budo died.

So, three days passed and the Empire atmosphere was getting even more intense like a war is about to start as the Empire was focusing completely at the revolutionary army, which didn't understand why someone killed Budo then threw the blame at them.

When the Empire was burning with rage and the revolutionary army didn't know if he should thank or curse this mysterious person. The cause of all the chaos was sitting on a table outside as he was writing some very complicated things on papers. There was a chestnut hair girl writing with him as they shared their thoughts before writing again.

It has been three days after Leo's walk in the woods and it was very long three days for him. After coming back to the mansion, Leo started his study with Venom and Gold Experience for now.

First, Leo made a beast to fix weapons and upgrade them, it was a pack a punch. The one only needs to put his hand and put his power like stamina as the pack a punch will charge and transform the weapon. Whitebeard fixed his naginata after putting it, and he felt it was better than ever before he agreed to fight Leo again.

Kazuma also saw this as his face stiffened after he saw the pack a punch before putting the DIO sword inside. DIO sword upgraded and became sharper, but Kazuma regretted his decision.

The sword now has two DIO faces at his sides and when Kazuma pulls it from the scabbard it says... You thought it was a sword, but it was me, DIO!!. Kazuma had more nightmares in the following days.

Honestly, Leo felt his mind is not enough for these informations about the DNA and matter transformation, but after these two days, he scratched the surface using his enchanted glasses and the memory increase by Venom.

DNA scanning was progressing smoothly, especially when Leo was focusing on the Teigu as he wanted to study it first before moving into other things. Leo has to say that Venom knowledge was a bunch of non-sense that violated all the known scientific researches, but after studying it for one day without sleeping. Leo figured that it's just taking a different approach, which is more profound than the normal human science.

Leo was able to progress even faster after he throws away his previous knowledge and accepts this one as he learned more about DNA effect and how can this Teigu generate electricity in huge quantities and control electromagnetism to create thunder clouds.

But Leo has to admit that his study speed increased even more after Misaka joined him in this. Misaka saw his huge stacks of papers before she picked one and read it as she didn't understand at first, but after reading over 100 pages, she joined Leo in this study.

Misaka put different theories and some of her equations as Leo put his knowledge about DNA and a huge debate about the electricity started.

But even if was a debate, it was more like two people sharing notes as they both benefits from it.

However, Leo wasn't able to understand a lot from Gold Experience about how it just works. Even Misaka felt that her LVL 5 brainpower is nothing against the non-sense Gold Experience was writing. But Leo understood few things like Gold Experience somehow able to mimic two-atom fusion and generate some energy from it in the form of life, which is completely weird or rather say bizarre.

Ddraig also woke up from his sleep on the third day and the first thing he saw was Leo buried under papers before he understood what is going on. Leo asked Ddraig if know things about fire, but he said it's his instinct as a dragon before he pointed to Leo that he should feel fire more with his energy as it's faster with his dragon power.

Leo took the advice and could transform his Ki into fire and became a living torch as he realized that his resistance to fire is very huge.

So this is the three days from studying, fighting, and experimenting things like creating a beast based on thunder.

Leo really wants to confirm again that his Longinus is a BUG, as it gave these things to his beasts without him knowing anything about it.

The team was having it easy, especially when Leo told them that the target is in the Empire. Kazuma was training and leveling, whitebeard drinking or going on a walk, Saitama didn't show up a lot after he learned to fly, Kaguya wasn't showing up, Misaka was studying with Leo.

Misaka finished another paper about her modified equation as she couldn't believe what's happening. Her formulas and equations that didn't improve from the moment she reached LVL 5 was upgraded with the help of this guy in front of her.

Misaka didn't see this form of DNA information in her life. Even the Academy city didn't have something like this. At first, she thought it was just random things, but after three days, she felt that this nonsense reached the Academy city level and surpassed it.

But even if things were okay, Misaka didn't understand a few things like what's Leo doing. And how are those two pens floating and writing at a top speed? As she didn't see Gold Experience.

Misaka looked at what Leo was wearing now. Leo was wearing a white dress shirt and black pants with a dark blue tie, and a dark blue vest. His glasses changed into a monocle as Misaka didn't understand what this guy is doing, but she had to admit that these clothes look good on him even if that lasted until he opened his mouth.

"Come on, Mikoto" Leo didn't move his eyes from the papers as he said " Just do it"

"No matter how you put it, that's impossible" Misaka was feeling tired from this conversation.

"Nothing is impossible if you believe in yourself" Leo didn't care about Misaka tone as he said " You can do it"

"Then can you at least tell me why and how I can do it?!" Misaka didn't understand why she's listening to this guy crazy ideas.

"It's very simple" Leo looked at Misaka before he said " You have to look into that personal reality of yours and go deeper to those little electric signals in your brain. Look for that little spark called madness."

"Then unleash it in the form of electromagnetic pulses that destroy chemical bonds within the molecule!!" Leo rotated the pen in his hand before he said " It is simple, isn't it?"

"NO, IT'S NOT!!" Misaka hit the table as the papers flew in the air. She felt her head hurt from this guy theories that always involve mass destruction.

"That why you have to believe more in yourself" Leo didn't care about Misaka as Gold Experience gathered the papers and put them back on the table.

Kazuma that was swinging his sword against Kirito doll looked at the science duo as he wasn't able to understand a single word coming from their mouths. But he wasn't focusing on Kirito as he was focusing on the other monster.

"Then if you're thinking like this... " Misaka massaged her temples before she pointed at the monster and said " Explain to me, what's that?!"

Leo looked at where Misaka pointing before he said " Mikoto, That's a very powerful being"

"They call him the devil, the thunder beast that was able to defeat countless enemies even hitting the creation god..." Leo pushed his monocle as the monster introduced himself " Pikachu!"

A Yellow fur and long yellow ears that are tipped with black. A large tail is notable for being shaped like a lightning bolt. On its cheeks are two circle-shaped red pouches. This is a Pikachu.

Leo made it after he mastered some genetic code of the Teigu as it was strong enough to drop thunder from the sky and equipped with different skills from Pokemon.

"No, I meant, why did you make it?" Misaka looked at Pikachu and had to admit it's cute, but she didn't understand why Leo create it.

"I just wanna be the very best that no one has ever was" Leo replied calmly as Kazuma finished his words" To catch them and enslaves them forever is my real test~ "

"To force them to battle forever is my cause~" Kazuma began the sing the realistic version of pokemon opening before Leo said " Pikachu use scary face!"

"Pika!" Pikachu waved his arms around his face for a moment before he raised his head and looked at Kazuma with a... DIO face.

"What the fu-" Kazuma didn't finish his words before Kirito doll hit him with his wooden sword and said " Language! "

Even if Kazuma surpassed the level of beginners in swords but he's still no match for Kirito doll and its starburst stream.

Misaka stared at these two idiots before she sighed again and picked up another paper.

"Well, anyway..." Leo stood from the table as he said " I'm going to test the result of our studies... Do you want to join?"

Leo looked at Kazuma and Misaka as they looked at each other before they said in the same time " You're not planning to destroy everything again?"

"No, no, no... Come on, you know me" Leo waved his hand, but Kazuma and Misaka looked at him with a gaze filled with disbelieve.

Leo stared at these two with a deadpan face before he said " Do you want to come or not?"

"Yes" Misaka and Kazuma replied at the same time before they walked towards Leo.

"Don't blink" Leo spanned his fingers before three of them disappeared with a blue glow.

Far away from the mansion, the trio appeared on rocky grounds as they stared at the place.

"So... A moment of silence for this place" Kazuma put his hands together as he said goodbye to this place because it's about to get destroyed.

"...." Leo felt the way this group looks at him is very wrong, but he didn't care that much as he took the Teigu from his box.

Kazuma stared at the gauntlet with hatred as he remembers he wasn't able to use it no matter how he tried. The gauntlet kept hitting him with electricity the moment he touches them.

Misaka looked at the gauntlet as it felt a familiar feeling from it and could use it, but she didn't like a giant gauntlet.

Leo put the gauntlet on the ground before he summoned Pikachu and said " Use thunder"

"Pika... Pika..." Pikachu raised his hand to the sky as the thunder clouds appeared.

After looking at the clouds, Leo turned to look at Misaka and said " You also use thunder"

"Do you think I'll do it?" Misaka raised her eyebrow because she felt that Leo and Kazuma eyes are looking at her like looking at Pikachu.

"We can go on a long talk about this, but in the end. I'll still convince you" Leo words made Misaka helpless before she raised her hand and more thunder clouds appeared in the sky.

"Keep it like that" Leo nodded at Misaka and Pikachu and felt this is kinda ironic before he summoned the Boosted gear.

*BOOST*

Leo took a deep breath as his lungs and heart generated a huge amount of vitality before transforming it to Ki.

This situation continued until the sky was filled with dark clouds that were flashing with thunder and Leo boost reached 128 times before he said " Misaka, Pikachu, now!"

" CHU!!" Pikachu released his electricity towards the sky as thunder increased before falling down and Misaka controlled the thunder to fall on the Teigu even if she's feeling this is wrong right now.

Leo stared at the thunder and lightning hitting the Teigu before he took a deep breath and rushed inside.

A golden red aura appeared around Leo, which protected him from thunder before he picked the Teigu and activated his Annihilation Maker.

*TRANSFER!!*

Boosted gear transferred the power to the Annihilation maker as a giant ball of dark light appeared around Leo and absorbed all the thunder around.

Misaka and Pikachu kept sending thunder until they noticed that the ball rose and absorb thunder by itself.

Leo was standing on the ground as he looked at the dark thunder ball, reached the clouds and absorbed all the electricity in them.

"Now, what?" Kazuma was feeling this is going to go badly as Leo smiled before he said " Wait a moment"

Misaka looked at the clouds in confusion because she noticed that the electromagnetic energy in the sky increased at very high speed with much more clouds appeared.

Leo smiled as he felt it complete before he walked forward and made a distance between him and Misaka and Kazuma as he said " Witness this moment..."

Leo raised his hand towards the sky as yellow thunder was flashing on the clouds before he said " I, Leo Arisaltek, the destruction creator, now release your constraints"

"Hold on..." Kazuma stared at the clouds before he looked at Leo, raising his hand as something flashed in his mind.

"*Sigh*... Not again" Kazuma covered his face while Misaka was confused, but Leo was finishing his words.

"Come forth..." Thunder dropped from the sky as it engulfed Leo in it, but it didn't hurt him before he said " Fifth Familiar... REGULUS AURUM!!!"

"ROAAAARRRRR!!!" With a vast roar, something appeared from the thunder and stood behind Leo. It is a lion-like giant monster who has bright red eyes and has a lightning-like mane. This is a Regulus Aurum, the familiar of the fourth primogenitor from strike the blood.

Ignoring Misaka's shocked eyes and Kazuma face-palming himself, Leo looked at the fifth familiar before he said " Now this is a Lion... This is so relevant for me"

Leo nodded with satisfaction at his new beast, and for the first time, he used his Longinus correctly. Annihilation Maker usually used to create giant monsters then send them to do the job, but Leo never did that and made all those battles helping beasts without a giant one to unleash it at enemies. And it more fitting with his name.

This beast is the fifth familiar of the fourth primogenitor from strike the blood which is a blood vassal that can exist in Leo blood and assist him in combat or throw him at enemies. This familiar can produce and manipulate electromagnetic energy, which is very powerful to destroy everything in its way. And Leo can use it normally as long as he can breathe and his heart still beats.

Leo breathed a sigh of relief as his attempt was successful. Even if he already tried with Pikachu, Leo wasn't quite sure about this beast, but the combination of his knowledge, Misaka formula, and a huge boost from the Boosted Gear did the trick. Leo thought he really needs to thank Misaka after this.

Leo lowered his hand as REGULUS AURUM went back to his body before he said " Call me the fourth primogenitor because I'm about to thunder this night* Cough* I mean day"

"Every day with a new weapon of mass destruction..." Kazuma removed his hand from his face before he said " You really live up to the title of destruction creator"

"It's annihilation maker, but the alternative title isn't bad" Leo nodded at Kazuma and the shocked Miska before he snapped his fingers and move back to the mansion.

"*Sigh* Why it's always destruction. First the nuke, now this" Misaka sighed before she said " Sometimes, I feel you guys enjoy things like killing"

*Awkward silence*

Misaka raised her head as she saw Leo staring at her calmly before he said " Mikoto, here another lesson"

"When you kill for the first time... You may feel sick or guilt and sometimes you may feel nothing like I did, but..." Leo stared at Misaka seriously before he said " There's a line you should never pass"

"Honestly, even if I kill millions. I'll not care, but certainly, I'll never enjoy it" Leo stared at the confused Misaka before he said " Never pass those lines Mikoto"

"Yeah... I mean killing and such, but there are limits" Kazuma scratched the back of his neck before he said " Like the difference between a never kill hero and psychopath that enjoy killing"

Misaka lowered her head as she felt that she said something wrong at that time. But before she apologized, she felt a hand on top of her head.

"Don't apologize and keep your head up..." Leo patted Misaka head before he said " I know you're also trying, so you don't have to be sorry for anything"

Leo knows that this stubborn girl sometimes goes outside the mansion to fight with danger beasts as she got used to seeing the blood of monsters, which is a great step forwards. Misaka was shocked as she didn't know how Leo knew about that.

"Like I said, don't worry, Mikoto and good job" Leo smiled at Misaka before he said " You showed me, I really can't underestimate the rail gun"

"O-o-oh..." Misaka wasn't able to say anything while Leo kept patting her head before she recovered from the shock.

"Hey..." Misaka started to flash with electricity before she said " How long do you plan on messing with my hair"

"Hm?" Leo looked at the thunder Misaka before he smiled and said " For a while"

Misaka clenched her fist as lightning rushed to Leo, but for Misaka surprise, a yellow thunder blocked the lightning.

"Sorry, Mikoto..." Leo smiled at Misaka before he said " You're not the only one with electricity now"

Kazuma looked at Leo, patting Misaka's head with a smile while Misaka was struggling to remove his hand as thunder and lightning were flashing between them. He felt these common tsundere acts are hurting his soul before he said " Die... Just die, both of you"

"Suck to suck, Kazuma..." Leo looked at Kazuma that was boiling with jealousy, but before he said anything else, he felt something.

"*Sigh* Well, this is enough for today" Leo removed his hand from Misaka as she jumped away and she was looking at Leo with hatred.

"See you later..." Leo waved his hand as he walked away before Kazuma said " Where're you going now?"

"Me?..." Leo looked at Kazuma before he said " I'm going on a walk"

"Please, tell me you're joking" Misaka covered her face with her hand as she remembered Leo walks. First, it was a nuke then the other one, he brought a weapon which Kazuma told her it's from a general in the Empire.

"I'll leave that for your imagination..." Leo walked away as he said " It's time to see this guy who's messing with my beasts"

Misaka and Kazuma sighed as they saw Leo walking away while feeling that another disaster is about to happen.