The wondrous creation of three Supreme Gods had no equal, a beautiful ship made out of the materialization of their Supreme Divinities and Domains had emerged! However, it had still some help to be given, as even then it wouldn't last that long! The power of Rimuru quickly came afterwards, as her beautiful appearance became even more wondrous and mystical as the divinity of water and spirits came from within her, enhancing the ship with a countless rivers of colorful spiritual oceanic water, making it bigger and even more beautiful than before! However, that wasn't all, as Rimuru enhanced the entire ship and gave it some sort of artificial ocean around it, which it could use to move over the death miasma sea even more effectively and efficiently than before!
And lastly, Kireina unleashed her devouring and chaotic darkness, which became a massive mantle that surrounded this entire ocean, resembling a mass of chaos with many crimson-red eyes and wiggling tentacles everywhere, this monstrous and grotesque materialization of her divinity would devour the death ocean as they moved, making it even harder for it to consume the ship where they're traveling!
"Then we are set!" Said Kireina, as all the Supreme Gods reached the ship and by combining their forces together, they began to pull the enormous vessel across the ocean of death!
FLAAAAASH!
The ocean of death generated a tremendous distortion in space that generated a deadly gravity, even supreme gods would drown into such an ocean, even more as it was being fueled with the endless necrotic energy of the Netherworld Plane Dimension! Because of this, this ocean was able to even swallow supreme gods if they were careless enough, even Flora by unleashing all her power would ultimately be pushed back at most, or if she managed to get to the other side, she would end too weakened.
This is why all the Supreme Gods had to converge their power and move forward together was a team, so they could preserve their energies all while converging their strengths to get through this deadly ocean that would devour even the power of supreme gods… The entities within the Realm of Death, Helheim, looked into the ocean as a ship suddenly emerged atop of it, swimming through at an incredible speed, the ship was covered by many powerful supreme divinity essences, making it an incredible and near-impenetrable swimming fortress, there were very few things that could possibly put this thing down!
Hel smiled as she saw the Supreme Gods finally began to move, her eyes flashed with bright crimson-red light, as she began to emanate a strong aura of dread… She moved her hand as she decided to attack them while they moved, this was their most vulnerable moment as they would be risking drowning in this sea, which was like where Hel wanted them the most!
"Fufu… Fools, you really just came through the sea… Well, it's not like there was any other way, isn't it? Now… I got you all in the palm of my hands…" She said with a smile.
..
Kireina looked into the distance, there was darkness everywhere the eye could see, and she was being forced to put a part of her Minds and also her power into this ship to maintain it moving and healthy, the deadly death miasma was already incredibly strong, and it would continue to attempt to devour the ship constantly, due to that, all the Supreme Gods also had to constantly infuse divine energy into the vessel. However, because all five of them were working together, the job and cost was split in 5, and this made it so they didn't used as much energy and could still save a great deal of it.
Also, Kireina was slowly comprehending the Law of Nether and Death alongside gaining Death Attribute Particles by devouring the sea through the part of the ship that was created by her, which resembled a mass of darkness with many jaws and crimson-red eyes. However, if she got too glutton and tried to devour more than just this quantity, the death sea would end up consuming her instead, so she had to keep her composure and slowly devour it as they moved, which was already a big burden to her dimensional stomach that had to constantly dissolve all of this… She had already even dissolved and digested entire pocket dimensions, so this wasn't that crazy, but it was still a hard thing to do and she had to put even more minds into the job.
The other Supreme Gods noticed how Kireina's presence was slowly gaining more Death Attribute Particles and something more dwelling within her, the Necrotic Core she had created was already absorbing part of this Necrotic Energy within the death sea she was drinking, it began to slowly get refined, gaining more and more energy as time went on, and it emanated a strong aura of nether and death.
"Kireina, is that the necrotic core you said you made?" Asked Flora.
"Yeah, I got this alongside the demon core." Said Kireina. "What? Interested in having one? A few of my allies also got both demon and necrotic core, having these new energies to enhance our power is not bad at all."
"No thanks… I am fine with what I have now… However, how is it possible for you to be able to converge these energies just fine? I am simply surprised by how you can just do that…" Said Flora.
"Well, I've always had a unique body composition…" Said Kireina.
"I also got both cores! They're shiny and… That's all, Demonic and Necrotic Energies are strong though, fusing them with my own Abilities can sometimes bring powerful results!" Said Rimuru.
"Hm, I see. Well, it can certainly bring some powerful results…" Said Flora.
"It is interesting, your core is being refined as you devour the sea? Perhaps you could attain a grater authority over death than Hel… Well, we might let you devour her and then you can replace her, it would be better than Hel for sure." Said Aura.
And while the Supreme Gods spoke, a sudden army of entities began to swim towards them through the sea of death…
