Epic of Caterpillar

Kireina's sudden arrival shocked not only her beloved family, which she had been missing so much, but also her enemy, the Necrotic Realm Ruler, who had manifested himself utilizing a powerful vessel which had already even surpassed the Supreme God Realm, achieving the World Devourer Realm, the Realm that represented planets and worlds themselves.

Beings of this caliber didn't exist in this world aside from Genesis herself, who was the very core of the entire World of Genesis. However, in the dangerous Outer Universe, World Devourers were spread through the entire cosmos, and to further improve their strength, they had to absorb Cosmic Energy, something that could be acquired easily by devouring the cores of worlds.

Hence, their name… World Devourers!

However, Kireina in her most recent evolution had already attained such a Realm herself, something that nobody else than Genesis and now the Necrotic Plane Ruler's vessel had attained.

She was killed, and was much weaker than most beings in this World… But once she came back, she was now stronger than anybody?!

"T-This overwhelming presence…!" Genesis panicked within the core of the World, her countless eyes glancing at the entity emerging from the boundaries of Dimensions and Worlds. "I-Impossible…! She's alive… And she even came stronger than before?!"

The other Supreme Gods that had been mostly just watching has chaos unfolded felt their Supreme Divine Souls shaken the moment Kireina's almighty presence emerged.

"What is this monster that has come to our world?!" The Supreme Goddess of Fate and Destiny cried. "S-She's back?! Impossible…! But Fate and Destiny… They said she would die! Why is she alive?! She is… UNGH! ARGH!"

Suddenly, the Supreme Goddess of Fate and Destiny let out of a loud scream of agony, Kireina's very presence was so powerful that she was condensing and devouring Fate and Destiny itself, weakening the Supreme Goddess by merely existing!

"K-Kireina…! She's… completely devouring Fate and Destiny and reshaping it to benefit herself?! She doesn't even seem… to understand she's doing this automatically?!"

"The souls of the world are shaken! They're all screaming in horror… The balance that has already been broken is now shattering into even smaller pieces…" The Supreme Goddess of Souls sighed, feeling both fear, and a slight hope for a change she had been waiting for. "Kireina…"

"Hahahaha! How amusing! She's back." Laughed the mysterious Supreme God of Time. "Although, I already knew that. After all… In every future I saw… She was always back. Her presence is almost quintessential to the balance of our timeline…"

"I'm back everyone…" Kireina smiled, her eyes gazing through the entirety of the World of Genesis, not only her beloved family was still safe, as she felt relieved, but she also saw through mostly every single living being in the World in a single split of a second. Her words quickly reaching Genesis herself!

"Are you in a pinch, big sis?" She asked while laughing.

"Huh?! How come you can speak to my mind?! ARGH…!" Genesis groaned, feeling Kireina's very presence beginning to slowly… infect her soul! "S-STOP!"

"I'll stop." Kireina suddenly stopped. "But I can tell you're in a pinch, can you beat that monster?"

"T-That's…" Genesis was really in big trouble.

"I guess this whole world will have to rely on me to get this done with!" Kireina laughed. "How interesting how the tables have turned, dearest sister…"

"W-What are you proposing?!" Genesis cried.

"Nothing for now." Kireina laughed; her eyes seemed like stars. "I'll simply protect the world I love. I hope you don't get in the way… Or I don't know what might happen to you."

"Tch… D-Do as you please!" Genesis cried.

"Okay then~" Kireina laughed, as she glanced down at the huge monstrosity surging from beneath the surface of the Realm of Helheim.

She quickly examined her own powers and her soul, feeling as if she was constantly growing stronger the moment she stepped into Genesis. She remembered she left behind her whole Divine Realm to her wives, dividing it into four fragments given to Rimuru, Zehe, Nesiphae, and Brontes.

It seemed that she didn't even need to "reclaim" such power, as it was naturally going back to her as endless and powerful essence, her many abilities and skills were also beginning to readjust themselves into her soul, and above all, the Soul Book powers she acquired in Grand Terra…

Were still there!

In fact, the Status was completely unaffected by traveling to another world. This summed with her ever-growing powers as she slowly reabsorbed back her Divine Realm's powers, skills, abilities, and more made it so Kireina was only growing even mightier as seconds went by.

"Mastaaaaa!"

"Kireinaaaa!"

"You're finally back!"

"I can't believe you're here!"

Rimuru, Nesiphae, Brontes, and Zehe ran towards Kireina, hugging her enormous black metal titan body and beginning to slightly crush her. For some reason, despite Kireina regaining her powers, the power they gained out of her Divine Realm was not going anywhere. It was as if she was still sharing it with them!

"I'm so happy to see you all!" Kireina started crying, embracing them in a hug. "But… this is not the time to do all the cuddly stuff yet!"

"S-She's Kireina, right? Are my eyes working alright?" Loki wondered in the back.

"S-She is…" Fenrir nodded.

"It is her." Jormungandr nodded.

"She's alive!!!" Yiksukesh celebrated.

"Kireina!" Redgaria was shocked.

"S-So she's lady Kireina!" Said Annabelle at his side.

"Looks like Loki got her daughter." Kireina smiled, noticing Loki holding Hel in her arms. "And Redgaria his sister, thankfully." She sighed in relief.

"I knew you would be back!" Flora smiled. "However… I'm really sorry for having forced you to… do that back then. I would never be able to amend for such a mistake but…"

"Nah, don't worry about it." Kireina said. "As some idiots like to say, it was fate, and that helped me come back even stronger, so we can resolve this goddamn problem once and for all."

"Kireina… I'm so glad to see you back!" Aura said.

"Y-You're alive…" The System Master seemed oddly unhappy!

"Heh, I already knew she was coming." Lucifer giggled.

"Yeah, guys, let's talk more once this is over though." Kireina smiled, glancing at the Necrotic Ruler. "Hey, dumbass, how about you stop pretending to not exist and fight? What happened with all the bravado?"

"S-SHUT UP!!! I'LL KILL YOU NOW FOR SURE!!!"

The Necrotic Ruler had become completely mute when Kireina arrived, as he was so shocked he felt paralyzed.

After all the stuff he experienced against her back in Grand Terra… And even having his soul parasitized and chomped twice, he had unwillingly developed some sort of traumatic response against Kireina's voice.

However, as a prideful ruler, he couldn't let her play around with him like that, even less in front of the world he was about to devour!

"Just what happened between you and him for this monster to be so afraid?!" Nesiphae asked.

"Well, I've beaten him like twice already." Kireina smiled. "No… thrice? I think thrice. He has helped me grow stronger a lot, so I am quite grateful for that… Now, I've got a few friends I want to introduce to everybody…"

The Auras of the friends she brought along from Grand Terra surged from within her gigantic body made of materialized World Devourer Realm Aura…

"DIEEEE!"

The Necrotic Ruler raged, as his gigantic tentacles moved thousands of kilometers, reaching Kireina in a single second!

CRAAAAAAAASSSSH!