Epic of Caterpillar

Four mechanical giants materialized, as the four Undead quickly let the armors take over their bodies, channeling their divine powers and also their new, unique spiritual energy powers they ended inheriting from their former transformation as a mad beast.

Aldrich glanced in surprise as he saw the four mechs emerge and grow larger based on the amount of Mana and Divine Power they imbued into them. Each Mechanical Armor took the appearance of their wielders to an extent, resembling gigantic, mechanized Undead of various shapes, gloriously emanating auras of death, darkness, and phantom!

"Hoh, amazing." Aldrich analyzed things as he floated in midair. "My Master surely has an incredible set of abilities. To think you can boost the strength of these weaklings this much… Maybe I have one?"

"You're already enough by yourself, these armors are made to enhance weaker allies and make them much stronger, but the stronger you are, the less effective these mechs become, unless they're specialized forms using my Skills." Kireina smiled. "However… Well, we've changed a few things out of them, and they're now Egos that can Level Up and gain Skills on their own, pretty incredibly, right? As long as they fight with them, they will keep growing stronger, and if they are damaged, they can self-repair as long as they can find materials."

"The more reason to give me one then!" Aldrich would be waving his tail if he had one right now.

"Nah, you're already an Ego, Maxima Summon, a Spirit, and Weapon, I am sure you can just level up on your own." Kireina said. "Also it wouldn't be as effective because your form keeps shifting, and your current appearance cannot be maintained forever…"

"Tch…" Aldrich seemed slightly pissed, crossing his arms.

"Well, welcome to the club! You're a weapon first, and then a person." Laughed Black.

"Black! Kireina-sama has never treated us bad, what are you even going on around?" White sighed.

Both materialized themselves into their embodiment forms, White resembling an angelic lady made of white light, and Black resembling a devil with a long and pointy tail, demon wings, and horns, made of just darkness.

"Anyways, looks like they're getting here." Kireina smiled, as she ignored the gigantic beast slowly approaching the Realm and noticed several figures coming closer.

"Masta! I'm back! I've managed to rescue the Niflheim Pantheon Gods, and also Skadi and her weird Spirit!" Rimuru said with a smile, reaching down and hugging Kireina. "Mooch!" She gave her a little kiss because she was needy for attention and love.

"Well done!" Said Kireina while nodding. "Where are they now?"

"Oh, they're resting inside my Divine Realm, guu…" Rimuru said. "Was the giant monster…?" Rimuru wondered, confused.

"Yep, it was the Undead kids." Kireina laughed. "They're ready to fight though, so we've got ourselves a few more capable hands."

"Guuu! That sounds nice! Hello guys! I'm glad you're alright too!" Rimuru waved her hand.

"Oh, Rimuru-sama!"

"Nice to meet you as well!"

"You're so gorgeous, as ever!"

"You look so happy now that Kireina-sama is back, heheh…"

As this cute interaction happened, Aldrich overly serious mood was having a hard time keeping itself afloat! They were too carefree! He needed something to happen so they would stop being this lighthearted! Was everyone on Kireina's army this relaxed?!

"W-What's wrong with these people… I thought I was the weird one." He thought. "Just how many things have they gone through together to think this is fine?"

"GRUOOOHHHHH! RAAAAAH!"

The beast roared again, just as Aldrich was hoping for something serious to break the mellow atmosphere that was being created!

TRUUM! TRUUM! TRUUM! TRUUM!

A gigantic set crystalline spikes emerged from within the surface of the Sky Island, sharp, like spines, which suddenly started gathering tremendous quantities of Spiritual Energies!

SPARK, SPARK… SPAAARK!

The Spiritual Energies began to gather, resembling rainbow-colored lightning energy, constantly concentrating, and growing stronger…

Until!

FLAAAASH! ZAAAAAAAP!!!

A titanic blast of rainbow-colored spirit lightning was summoned, descending towards the entire Realm together at once!

However, as the lightning was about to go down and Kireina desperately flew to intercept it, an even larger, titanic figure emerged, leaping from the ground below.

"[Divine Primordial Lightning Magic]: [Divine Lightning Absorption]!"

CRAAAAAASSSSH!!!

The lightning beam clashed into her body, as a cyclops titaness absorbed all the spiritual lightning at once! Everyone watched in awe at Brontes' amazing feat, as her [Spiritual Heart] started glowing brightly, beginning to grow stronger and further enhancing her abilities.

"Phew, well, that was close." Said Brontes. "Was that thing trying to destroy the whole realm?"

"Brontes!" Kireina said excitedly. "You're back!"

"Yep, all's good. I rescued whoever I could find, Palami, Raito, and Asure are safe and sound, just resting right now." Brontes smiled with her reliable personality, even the mighty Kireina felt at ease.

When she was in Grand Terra she often dreamed about being embraced and snuggled by her very big cyclops wife, but she had to contain that fantasy for a bit later…

Because things were only going to get much serious.

"RROOOOAARRRRGHH!"

The colorful spikes on the gigantic menace suddenly glowed into a different color, becoming deep red as they gathered blazing rainbow flames this time!

"Fire this time?!" Brontes wondered, readying her giant club. "I could probably throw it away? Can't you summon any fire wielders, Kireina?"

"I could, but everyone's busy right now. I sent two big squads with each group, so if I call them now, they might lose strength in their own missions." Kireina sighed. "Also my Doppelganger has Shadrach… I guess we have to just brute force it. The worst that might happen is that the snow melts, not a big problem." She shrugged.

"You're seriously just carefreely saying that?!" Aldrich was shocked. "W-What is wrong with all of you? How come you're so relaxed?"

"Guu? Who are you?" Rimuru wondered angrily.

"Well, Aldrich, there's no point in panicking too much." Kireina answered the wary Undead. "Thinking about things pragmatically and positively doesn't mean we're idiots…

"GRUOOOOHHHHH…!"

An enormous infernal burst emerged from the sky island beast, descending into Niflheim from the skies, resembling an incoming apocalypse!

"And we've got Rimuru too." Kireina smiled confidently. "Baby, do your thing!"

"Alright guuu!"

Rimuru leaped into the skies, her entire body expanding like an ocean of rainbow slime, covering the skies in mere seconds!

SPLAAAAAASSSSH!