The Epic of Leviathan

[Knox, Kuoh Forest] 

"Do you think this is going to work?" Jean asked, staring at their latest creation with awe in her eyes. 

"Oui, according to the tests it is supposed to work" Fleur quipped from the side, she also had a look of satisfaction in her eyes. 

"We can't say anything without testing it and we don't have any way to test this?" Momo was satisfied, but at the same time, she was annoyed too. She couldn't be proud of something if she didn't know if the thing would work or not. 

That is why they needed to test their creation before celebrating or anything. Momo, Fleur, and Jean had finally completed modifying the King Piece. Supposedly, they have removed any shortcomings and negative points, but they had no way to confirm it. 

"We can always ask Hela for some test subjects" Jean suggested meekly as she didn't know how the others were going to react to her suggestion. For a moment, Fleur turned towards Momo who simply shrugged. 

"I don't have any problems with live testing. There must be prisoners in the Underworld, we can use the ones who are sentenced to execution or life imprisonment" Momo suggested and Jean eagerly nodded her head in agreement. Then both of them turned towards Fleur, who still seemed to be thinking. 

"…I can't imagine Hela keeping prisoners" Fleur pointed out and for a moment, both Momo and Jean frowned. They couldn't disagree with what Fleur just said.

"…I suppose as long as we aren't using innocents it is going to be fine?" Momo suggested with an unsure look on her face. After a few seconds of silent contemplation, both Fleur and Jean agreed with Momo's suggestion. 

"Then let's call Hela before anything else" Jean said and Momo immediately pulled out her mobile and called Hela. After a few seconds, the call was accepted. 

"Hello, how may I help you Yaoyorozu-Sama?" It was Grayfia who had accepted the call. Momo internally groaned, she didn't like being referred to as Yaoyorozu-Sama. It made her feel old… and she insisted that she wasn't old enough to be called Yaoyorozu-Sama, but Grayfia always ignored her requests. 

Both Fleur and Jean started to snicker. They knew how much Momo hated being referred to as Yaoyorozu-Sama. Momo shot them a dirty look, but Fleur's and Jean's snickers only became louder. As soon as the call ended, they were going to tease Momo mercilessly. 

"How many times have I told you to not call me Yaoyorozu-Sama, hm?" Momo growled and she only received silence in answer. Momo was about to snap, but fortunately, Fleur snatched the mobile from her hand. 

"Grayfia, where is Hela?" Fleur asked. 

"Lady Hela is busy cleaning… garbage, Delacour-Sama" Grayfia answered after a small pause. Momo, Fleur and Jean tilted their heads with questions on top of their heads. Then all of a sudden, realization dawned on all three of them at the same time. 

"Is the garbage alive?" Momo questioned and once again, she received silence from the other side. Momo was about to snap a vein. She was sure that Grayfia was doing this for her sadistic pleasure. 

"Ah… yes" After a few seconds of silence, Grayfia admitted the truth. 

"Can you tell her no to kill them? We need some test subjects for the King Piece" Jean spoke out hurriedly, shocking both Fleur and Momo. 

"I will inform Lady Hela of your intentions, Grey-Sama" Grayfia said and ended the call. 

"What?! Hela was going to kill them either way. If we use them for tests then at least their deaths would have a meaning" Jean explained and neither Momo nor Fleur could find any fault in Jean's logic. 

So, the three of them decided to wait for a reply. After a few minutes, Hela sent a text message on Momo's mobile. Momo immediately opened the message and smiled brightly. She quickly showed the message to the others. 

'I am bringing the guinea pigs' that was all Hela has written, but it was enough for all of them to understand. So, the three of them immediately started to prepare their lab for live testing. They knew that they would be needing some space, so Momo pressed a few buttons and all the platforms melted into the floor. 

After a couple of minutes, Hela finally teleported inside the lab with 14 Devils. All of them were being held down by Hela's Astral Army and some were already missing a few vibes. None of the injuries were made by a sharp weapon. Hela had ripped off their limbs with her bare hands. Hela threw a mangled body towards the three inventors. 

"Start with her. I don't think she is going to live for long" Hela said with a neutral look on her face. 

The three inventors looked down at the body and they immediately cringed. It was the body of a middle-aged female Devil. The woman was missing both of her arms, along with both of her legs and she was also missing her ears. At least the woman had an eye left. 

Momo signalled Fleur, who grabbed a King Piece. The Lucifuge Crest appeared on the floor and Grayfia teleported inside the room with a silver flash. Fleur leaned down and placed the King Piece over the dying woman's chest. 

The King Piece started to glow brightly and moments later, it disappeared into the woman's body. The woman started to grow back her limbs along with her missing ears and eyes. Grayfia decided to stand beside Hela and watch the whole scene unfolding in front of her eyes. 

"The King Pieces aren't supposed to regrow limbs and organs, right?" Hela asked, looking in between Momo and the Devil woman who was returning from Death's door. 

"No" Momo swiftly answered. "We decided to use Fleur's and Jean's Healing Flames to stabilize the Power boost. Previously if the King Piece was used on someone too strong or someone with special ability, then there was a very high chance that they might die" Momo explained and continued to observe the changes in the Devil woman. 

"Hela, can you create some more Astral Figures to hold her down?" Jean requested and Hela simply complied. After that, Momo decided to continue her explanation. 

"They died because their body couldn't handle the sudden power boost and even if they survived, the sudden power boost caused a lot of damage inside their bodies. But that won't be happening if you use the new pieces. After all, the body is being healed and reconstructed to handle the power boost" Momo finally finished her explanation. 

"Looks like the transformation is complete" Fleur declared. The woman was struggling very hard to get free from the Astral Figures, her newfound power was obviously helping her. 

"Let me go you bitches!! I will hand you over to the dogs as soon as I am free!!" The woman continued to scream, but everyone ignored her. 

Momo, Fleur, and Jean continued to observe the changes and see if the changes were stable or not. After nearly half an hour the three of them finally stopped prodding the woman, who was still struggling to get herself free. Momo released a satisfied sigh and both Fleur and Jean had huge grins on their faces. 

"Get rid of her, she is no longer needed" Fleur said dismissively, while she continued to stare at her datapad. As soon as the words left Fleur's mouth, the woman was beheaded. Hela would have preferred ripping apart the woman for the second time, but she concluded that the gore would be too much for the three inventors. 

"The first test was a complete success" Jean declared with a grin and both Momo and Fleur followed Jean's example. "But we need to continue testing. Hela, can you grab us the strongest Devil you brought?" Jean requested and some Astral Figures immediately came forward with a male Devil. 

The man was missing an arm and from the way the man was groaning, it seemed that Hela had turned his jawbones into powder. Fleur quickly grabbed another King Piece and placed it over the man's chest. From the readers, they could see that the man was almost at Ultimate-Class level. So, this man was a perfect candidate for the test. 

The King Piece started to glow brightly and moments later, it disappeared into the man's body. The man's missing arm started to grow back while his jaw also started to heal. The man's power level started to rise up and the King Piece was working like it was supposed to. By the time, the transformation was complete, the man's power levels have reached Satan-Class. 

The man used his newfound power to get himself free and immediately lunged towards Fleur as Fleur seemed to be the weakest among the five. He wasn't planning to kill her, he was going to take her hostage to get out of this place. He wasn't delusional enough to think that he could defeat Hela even with his power boost. 

But his intentions were left unfulfilled as Hela's hands grabbed his head and she quickly slammed him on the table. Hela used so much force that she snapped the man's spine like a dried up twig. Hela stood up and placed her feet on the man's back and then she started to pull on his arms. 

"Keep holding him like that and don't rip off his arms. You can do whatever with him after we finish our test" Momo said as she started to record the data. 

After a few hours, they were finally done. "You can get rid of everyone. We don't need to conduct any more tests. We are sure that the King Piece 2.0 are working perfectly!" Momo declared with a huge smile on her face. They conducted the test a few more times, before giving their new invention a green light. 

"Fantastic!!" Hela exclaimed and crushed a man's skull under her heels, spilling the contents on the floor. Just like she had suspected, the three inventors cringed at the sight in front of them… At least, none of them emptied their stomachs… 

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