That moment when Rok and Lune disappeared in Gremory's dungeon.

Those remaining in the dungeon were busy dealing with invaders.

"Good work."

"It was nothing. Hmph."

Meri and Eila restrained a group of adventurers they wiped out with vine rope. They plundered all expensive-looking items and luggage, and stripped everything down to underwear. 3 men and 4 women.

Quite a large number of adventurers found the dungeon, and excluding those who unfortunately died, they achieved the feat of capturing a whopping 7 people alive.

"You traitors to humanity! How can you side with the Demon King's army!"

"P-please spare me! I won't talk about what happened here outside! We're all human!"

The adventurers each reacted differently, either begging for life or denouncing Eila, Meri, and the human subordinates. Meri pushed the prisoners into the cell with an indifferent face, and Eila locked them with a bitter smile.

"Your thoughts will change if you receive his love."

"Fallen knight...! You're insane!"

"Yeah. I'm crazy for him."

Eila drew her sword toward the woman disgusted at her.

"Know that not killing you immediately is thanks to Master's generosity. See what happens when you resist?"

Eila pointed to the woman being eaten alive by Line in the middle of the cavity. The thief woman tried to untie the rope and escape, got caught by a ghoul, and ultimately became food for the human-shaped slime.

"...Really so much to worry about. What if the prisoner cell fills up?"

"Who knows. Tie them with vines for now. Ask dad when he comes."

"I wish we could attack from this side soon."

Hours had already passed but there was no way to know if Rok was alive or dead. Rok refused anyone from following in succession. Only those who could defeat a max level 2-star Andras 1-on-1 could stay by Rok's side.

"...They'll assist well together, right?"

"Of course, they're the two strongest."

Eila and Meri raised their heads toward the ceiling. The strongest slime who always waited on the ceiling wasn't here now.

"Even so, going to raid someone else's dungeon is a bit...."

"We can only hope for good results."

They both anticipated Rok's victory report.

***

The system was definitely a miraculous technology Solomon supported for dungeon operation, but it had many holes.

Since I attempted rapid development targeting those holes and summoned the administrator Estu, the system ultimately had loopholes.

Therefore, I decided to actively exploit those loopholes when I spotted them. Gremory didn't come out even at my cheap provocation, and we succeeded in creating a quite plausible position in the meantime.

"Hehe, she's probably looking for us by now, right? Ah, Lime. Tell me right away if there's anything ahead."

Gurrgle.

Lime, who buried her head in the wall, ate away the wall in an oval slime form after a long time. The path Lime was digging was so narrow that Lune and I could barely stand side by side.

"She never would've imagined we were hiding under the wing dress."

Lime was stuck hiding inside Lune's clothes from the start. She also doubled as Lune's armor in case of emergency, and above all, we had to thoroughly hide that a slimehole crossed over.

"It's obvious they're waiting in the passage, so why go that way? Just make a new path."

We had plenty of time. While I finished smashing all the gargoyles and a lull occurred, Lime separated from Lune and made a hole in the lower part of the wall right next to the portal. I barely squeezed into the hole crawling on all fours, and after we entered the hole, Lime vomited out the dirt she swallowed to plug the hole.

We hid by making another path in Gremory's dungeon wall. Gremory didn't notice at all.

"Master. What if the enemy discovers us doing this?"

Lune constantly worried and carefully watched behind. Despite already advancing quite far from the portal, Lune fretted whether the enemy would notice our operation.

"It's too dangerous...."

"It is dangerous. But it's fine. If they'd discovered us, they would've noticed from the moment we started digging the hole by the portal, right? If you discovered us, what would you have done?"

"Hmm, I would've shot arrows at the wall or stabbed with a spear."

"Right? But they're not doing that at all now. It's not showing on the minimap either. Unless they discover the passage we're newly digging."

If the system informed her that her dungeon was being remodeled in real-time, she would've sent forces already. I raised my hand and knocked on the side wall.

"Look. They don't know from outside."

"Master!!"

Lune let out a shrill scream and warned me. The knock echoed well enough to make a hollow sound. I raised both hands.

"Lime, this is enough. Widen the space so we can stand."

Gurrgle.

Lime, who was digging at a height where we had to crouch and crawl, stretched her body straight up. The speed of eating the cave slowed compared to before, but thanks to that, Lune and I could straighten our backs and walk forward.

Gurrgle.

And the moment we tried to advance a bit more forward, Lime reacted to something. Lune and I held our breath and exchanged hand signals with Lime. Right. Lime shook her head like no. I moved my hand left and took one step back.

Gurrrgle.

Lime, who pulled her body from the hole, spread herself to our left and started eating dirt again. Lime, who was advancing diagonally, started drilling a hole straight again at an appropriate position. I pressed my eye to a finger-sized hole where Lime had stopped before.

"Whoa."

There, an indescribable tentacle monster was writhing on the ceiling. A truly typical demon-like monster had protrusions like deep-sea creature tentacles all over its body, and below the monster, several women were caught underneath.

Haah, haah.

'Species belonging to the human alliance.'

Most were human, but among them were beastfolk with cat ears, small-statured dwarves, and even celestials. There was even a corrupted dark elf. They were all restrained in limbs by tentacles, drooling and convulsing.

Ehehe, save, save meeee....

Ah, the egg is coming out...!

'An automated spawning system by tentacle monster.'

Gremory, I thought she was a virgin only focused on breasts, but surprisingly she was a demon with a quite well-working brain. As expected, she was a being too good to just eat and kill.

"Master, is there something interesting?"

"There's something you shouldn't see."

I covered Lune's eyes to prevent her from seeing and slipped aside. Lune looked dissatisfied but at least it was better than seeing the scene inside and screaming.

"There's a terrifying monster inside. What if the monster notices us because you're startled after seeing it? The wall thickness is about two finger joints right now."

"...Is it that scary?"

"Yeah. At least scary enough that I shouldn't show you."

At my exaggerated warning, Lune tucked her tail. Curiosity kills the cat, but that place was absolutely somewhere Lune shouldn't go. I confirmed the location of the room with the tentacle monster and walked again following the passage Lime made.

"Lime digs paths really well."

"She practiced tunneling since her 1-star days."

Lime was a quite smart child, smart enough to handle ceiling construction in my dungeon like a pro since her slimefolk days. And using that intelligence, she was digging a new passage right next to the enemy dungeon's passage. The speed was very slow, but we could roughly grasp what was around and the dungeon's structure.

"Um, Master, earlier there...."

"What? Did you feel something concerning inside?"

"...No. Just feels unsettling."

Lune blinked then watched behind again. Whether the unsettling feeling was because of the tentacle monster or the captured dark elf was unknown, and there was no need to know the reason.

'Obviously it'll try to kidnap Lune if I mess with it.'

I couldn't let a mere tentacle monster eat Lune's virginity that I haven't even taken yet. I lightly squeezed Lune's chest to comfort her.

"I'll take you there later after the dungeon raid ends and we finish confirming if it's a safe place. Okay?"

"...Yes. Understood."

What reaction Lune would show was uncertain.

Thus for about several hours.

We advanced very slowly through the passage Lime created by digging.

Veeeery slowly. About one step every 5 seconds. I displayed superhuman patience while touring the dungeon's outer regions. Moving without being detected was good, but the speed was too slow that we might reach the time for offense and defense to switch before finding the enemy's heart.

"If we dig just a bit faster...."

"No. We almost got caught by goblins earlier doing that."

Lune cut down my opinion with one stroke. Actually at first, Lime dug at a speed close to maximum speed, then almost got caught by a goblin group passing through the adjacent passage. The dagger that bastard stabbed toward the wall barely grazed in front of my groin.

Scrape. Scrape.

The sound of Lime eating the dungeon wall wasn't completely absent. But advancing far from the wall created many difficulties. Staying far away might lead us astray to the wrong place.

Our target destination was the bedroom where Gremory would be moaning surrounded by camels.

To find that place, Lime occasionally drilled very small holes in the wall to spy on the interior. Like discovering the room with the tentacle monster, we succeeded in grasping the dungeon's structure to some degree over several hours. And we reached our destination.

...find them! ...before Estu intervenes!

A familiar voice came from beyond the wall. It was Gremory's angry voice, and Lime very slowly widened the hole. I watched Gremory through the awl-like small hole.

"Damn it, how can you still not find them after 6 hours!"

"M-grrk, maybe they escaped with a scroll."

"There was absolutely no magic reaction! If they escaped, the system would've reacted!"

"E-even if you say that, this humble one hasn't received the Demon King's grace...."

One groveling-looking goblin bowed and trembled. She seemed friendly toward camel monsters while looking down on goblins completely. Gremory smacked the bearded goblin's head with her spellbook hysterically.

"They're somewhere in this dungeon! Search every corner! You think getting a high elf subordinate is easy?! Just by probability, it's lower than 0.1%!"

"...."

Lune poked my side and grinned. I answered by giving Lune a thumbs up. Just then Lime drilled a second hole where Lune could see too, and Lune and I surveyed Gremory's bedroom from left and right.

'Her outfit's quite free.'

'Indeed. Is she trying to sleep?'

Gremory sprawled on the bed in a black negligee dress different from when she met me. The bearded goblin was pretending not to while appreciating Gremory's see-through.

"...Hm? I feel a filthy gaze from somewhere."

"T-this humble one is not!"

"Don't lie. Hmph, I can tell just looking at that horny lower body of yours. It's annoying so go back."

Gremory issued an eviction order to the goblin. Only Gremory remained in the room, and Gremory held her spellbook and fiddled with the air, seeming to take some measures.

'She's handling the system.'

'I can't see it though.'

'Me neither.'

Consoles didn't seem to be shared even between dungeon masters. I was amazed Gremory still hadn't noticed our presence and pondered how to fuck over Gremory.

'If we fight, fifty-fifty...?'

At a glance, she felt like a powerhouse on Luna's level. Seeing her hold a spellbook, she seemed like a typical mage.

Should I fight, or retreat and buy time? The moment I pondered.

"...!!"

Gremory startled and sat up.

"Are you fucking kidding?! You dug a new passage?! How?!"

Her startling like that made me feel deeply moved too. I sent Lune a signal and instructed Lime.

Crunch!

Lime swallowed the entire wall. The bedroom wall collapsed with Lime spreading left and right, and Gremory looked this way with a shocked face. We rushed into the bedroom through the collapsed wall.

"Wh-when! Ugh?!"

Gremory gripped her spellbook and raised magic power. I ran through the hole Lime created, and Gremory reached her empty hand toward me while quickly muttering something.

"Foolish bastard!"

It was magic. A giant crystal awl tried to stab me. I took the gamble of a lifetime.

"Luuuune!!"

With a command filling the bedroom, Lune's wind arrow shot from behind me. The angle was completely wrong for Gremory, rather it shot toward my side.

"Hmph, how stupid—"

"Hnngh!"

I took a deep breath. The wind arrow grazed my side and ricocheted left and right. Lune aimed precisely at both my sides and poured arrows, and the wind arrows bounced off my side fat and swept through the entire bedroom. Thanks to that, some awls were destroyed.

Crash!

Dust rose. But Gremory aimed the remaining awl toward me even through the dust.

"Die!"

With a rough sound, one of Gremory's awls flew precisely toward my stomach. I sensed victory.

"You made a mistake!"

To attack the part harder than my penis on my body. I bounced my belly forward like a convict fighter swinging an iron ball.

Clang--!

The awl bounced off without even stabbing my belly, and the spinning thing grazed Gremory's cheek.

"Wha--"

"You let your guard down, haha!"

Whaaack.

I kept the posture of flying with a belly strike and crushed Gremory's face with my belly.

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