The Gacha Gamble

Legion. Multiple Holy Swords. The Mark of Wrath. One year of time. Even considering all of that, there was only one thing left to do.

"I'm running the gacha!"

"Master, what exactly is this 'gacha' you speak of?"

"It means summoning based on probability. It's a ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠draw."

"Aha."

Shaitan nodded. Despite her immense status as the ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠daughter of the Demon King, she was ultimately a being summoned as my subordinate. Since she had volunteered for the role of military advisor, I had no choice but to put her to work. 'Still, I have to be careful.' If I made his daughter cry for no reason, a boy-demon-king with blood tears in his eyes would appear and turn me into a Pahuu-paste. Seeing as she was a succubus and had no aversion to what I did to Ryun, I would aim for her when the opportunity arose later.

"Ahem. To paint a big picture, you need a wide canvas, but you also need the paint to fill it in. What paints do we have currently?"

I asked and answered myself, folding down ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠one finger at a time. "Orcs, harpies, Andras, ghouls, and slimes. These are the main forces of my dungeon, and if we utilize Gremory's dungeon, that's it for goblins, gargoyles, and Jokamels. In short, this is all we have to work with."

"......Since it's come to this, I'll reveal it. There's one more. Just a moment."

Gremory confessed. I wondered what on earth it could be, but as Gremory muttered a spell, something fell with a thud from under her skirt.

"......Whoa."

Monsters that looked exactly like the tentacle monster from back then popped out. I definitely remembered the name......

"Skatology. They are heteromorphic monsters in charge of solving the toilet problem within the dungeon. They look like hatchlings right now, though."

"The encyclopedia is right here. But Gremory, don't tell me this......"

"......They're the hatchlings I birthed from my own belly, for now."

"No. I don't care about that, but where were you keeping these just now?"

"......."

Gremory avoided the question.

"Shaitan, do demons like Gremory even go to the bathroom?"

"If there is intake, there is bound to be output. Skatology are monsters that were in charge of septic tank facilities in the early days of the Demon King's army."

"......."

Suddenly, my stomach felt nauseous. As I made a strange face, Shaitan hardened her expression for the first time and shook her head.

"We don't use them anymore. I have never used them either."

"Then Gremory is the weird one. No wonder she's the biggest 'Loven Skat-lover'."

"Hey!"

Gremory shrieked, trembling with rage. While she was a helpful existence in many ways, Gremory's abnormal sexual desires were sometimes difficult for even me to handle. Nevertheless, I respected her. Because Gremory, and those Skatology, were all beings who lived enjoying the Las.

"Yeah, yeah. You kept them in your belly. So that's why you didn't go to the bathroom. Amazing guy. Anyway, raise them well. They don't attack their master, do they?"

"Of course."

"Then let's use them to run the septic facilities."

As the number of people increased, and with so many humans—whether captives or subordinates—I needed a means to process that. I will omit further explanation. In any case, one yellowish-brown paint had been added to paint the big picture. I now intended to increase the colors of my paint from 12 to 24, then 60. My subordinates stepped aside, and I grabbed the summon tickets in front of the summoning facility.

"It's 49 pulls, surely I won't get the same species, right?"

Quickly, 9 pulls. I stacked the nine tickets and tore them simultaneously.

"......?"

The nine summon tickets had become trash. My head turned to Shaitan on its own. Shaitan was fiddling with her fingers in front of her lower abdomen with a troubled face.

"W-well, there are probably many others trying to summon today besides you, Master. Because the message was delivered to all dungeons that you summoned me. I was the last one."

"Augh, I should have summoned you sooner."

I hadn't been able to pay attention because of the war, and thinking I would save them, I ended up starting in last place. There wasn't really a problem, but chewing over Shaitan's words, it seemed obvious that the summoning state was a mess.

"It must be chaotic with all 72 dungeons summoning at once. And the Demon King will be churning them out like crazy for a while."

If you thought about it as scattering monsters hatched through seeding, it was effectively a time when low-grade entities were running rampant. The probability of the summoning facility, in the end, meant that if you made it near-infinite, it converged to that probability; it didn't mean that if you did it 100 times, you were guaranteed to get it once.

"Still, only getting slimes and ghouls is quite disappointing."

"Master, what will you do? Shall I send them to Lime?"

"...No, just grind them."

I sent the only Slime Dragon I had obtained to the Altar of Sacrifice.

"Ah. Come to think of it, wasn't I unable to go above 3 stars...?"

"After you attacked Andras's dungeon and it was registered as Andras's dungeon, He adjusted it. I was going to tell you when I was summoned, but......"

"My fault. That can happen."

I could overlook that level of mistake because she had sent Shaitan to me.

"Rastuzard, grind them."

[Yes, Lord of Wrath.]

Rastuzard's hand touched the Slime Dragon. The Altar of Sacrifice was activated, and I mercilessly offered the eight monsters as sacrifices to the Slime Dragon.

Krrrk-krrrk-krrrk. With the sound of something being ground up, the Slime Dragon's level went up by 6. The Slime Dragon let out a silent burp as if it had filled its belly satisfactorily.

"Slime Dragon No. 4, wait in the center there. Then let's go for the next 10-pull."

"Master, are you thinking of sacrificing all the low-star entities like this?"

"Except for the existing species, I plan to grind everything ★★ and below. Why? Does it bother you?"

"No. As expected, you are efficient."

Shaitan seemed lost in thought by herself. I hadn't told Shaitan, but I also thought that what Solomon had done was quite efficient, effective, and evil. 'Since ancient times, blood ties have been a symbol of a powerful alliance.' Even I, who had thought of rebellion to eat Estu, was on the verge of feeling a loyalty I never had for Solomon after seeing Shaitan, so how would the other dungeon masters feel?

"My brain works well."

"Pardon?"

"Me, I mean."

I praised myself so as not to cause any misunderstandings. Only Ryun read my expression and bit her lip. Her ears perking up made it look like she was holding back laughter.

"Then, next 10-pull."

"Master, wouldn't it be better to do it later?"

"There won't be any more later anyway. If there isn't, I'll just live without it. Here I go!!"

In the first 10-pull, I had obtained Shaitan (guaranteed) and a Slime Dragon. Then, what about the next 10-pull?

"But if I'm going to have them, I want good ones!!"

Orc? I checked the text again. It was definitely an orc, and the last of the 10 monsters walking out of the summoning circle was a solid, muscular orc who boisterously pounded his chest with his fist.

"Brother, I have come to be of help to you!"

"I am not your brother. Rastuzard!"

I pushed the orc summoned to the dungeon directly into the Altar of Sacrifice.

"B, brother?!"

"I told you, you're not my brother. I only have one brother."

The Slime Dragon's level rose to 10. Everything from the slimes was ground up, and the orc who dared to call me brother became a hearty meal for the Slime Dragon.

"I only have one brother, so where does he get off calling himself my brother? Does he want to die?"

"You killed him."

"Yeah, so I killed him."

The only orcs that could live in this dungeon were the orcs I had seeded and Tural. I steeled my heart and picked up 10 more summon tickets.

"No, honestly, it's about time for a different species to pop up!!"

"Master, wouldn't it be better to summon later?"

"No! Whether it's a dragon or a unicorn, something is definitely waiting at the door! Not a Slime Dragon, not a Jokamel, but a real dragon that breathes fire or a unicorn! Here I go, 30-pull!!"

The magic circle spewed purple smoke and churned out monsters. One slime, two slimes, three slimes.... To put it bluntly, I exploded. It was a slime dungeon, so of course, only slimes came out like crazy. It was to the point where I felt it would be much better to just go collect slimes from a sub-dungeon if it was going to be like this.

"Is the Demon King crazy? What if only slimes are pulled like this? For more diversification of troops, I should pull lizardmen, spirits, dryads, and so on! It's not like I'm going for a slime cheese rush, what is this!!"

Enraged, I pushed the summoned subordinates to Rastuzard. The Slime Dragon reached level 14. At this rate, it felt like the Slime Dragon would hit level 35 with just level 1 monsters.

"Ugh! I don't know, next gacha!"

"Master, calm down!!"

My subordinates began to pull at the hem of my robe as I reached for the summon tickets again. Like a family blocking a father who couldn't quit gambling, they begged with teary eyes.

"Master, please! Today is a bust! It won't work! Do something else!"

"Let's pull later, okay? Today, just pull some semen, and you can pull monsters later."

"No, no!! If I pull now, it'll hit!!"

I held up the one summon ticket I had barely managed to save high into the sky and tore it. Then, the magic stone of the summoning facility began to spew purple smoke that was distinctly different from before. The silhouette wrapped in mist was a monster I had never seen in my life.

"Whoa, whoa! New face, new face!!"

The new subordinate who joined our legion was a giant whose head reached the ceiling of the cavern. His legs were slender, but his upper body was broad-shouldered and thick-armed, as if he only worked out his upper body. He had an appearance that suggested he couldn't stop his strength, and I spread my arms wide at the appearance of the Stone Golem.

"Welcome, new monster!"

Boom. The Stone Golem knelt on one knee toward me. His upper body tilted, and the summoning facility almost broke, but fortunately, it didn't collapse significantly. The problem was that the trouble caused by the Stone Golem, a troublemaker from the start, didn't end there.

"Hey. Get up and let's go outside the dungeon."

Grrr. The Stone Golem couldn't get out through the hole I had drilled in the dungeon. He was so tall that he couldn't pass through the low ceiling. The gray paint I had gone to such lengths to obtain was going to be used only in the corner of the room, never to be used outside.

"Gremory. Since I've summoned him, I can call him out with magic stone summoning next time, right?"

"I suppose so...? Magic stone summoning is placing an order with the Demon King's army in real-time."

"Stone Golems are regulars that are summoned quite often."

"Really? Heh heh, let's see."

I measured the Stone Golem's height by eye. With this height, he was a being that would be of great help to my Las Vegas reinforcement plan.

"Good. I got one Stone Golem on the 31st pull."

"Is that a good thing?"

"Looking at the state of the probability right now, I'm just glad I got at least one."

Interim settlement. All I had obtained were Shaitan, a Slime Dragon, and three Stone Golems. I caught my breath and tore nine summon tickets. Slimes would come out this time too, but I just emptied my mind. 'If you think you'll get something high-grade, it usually doesn't come out. Here, I should expect the slimes to come out instead-'

"Aaaaaaaah!!!!"

The cavern was filled with my scream. The sound of a pig being slaughtered filled the cavern. It truly felt like I was losing my breath.

"Aaaaaaaahhhhhh!!!"

Joy and sorrow that could no longer be expressed in language began to coexist. A being capable of evolving into 4 stars had appeared. A Slime Dragon. Ah, what a joyous thing this was. To be able to glimpse one more possibility for the evolution of a slime.

"Master, u, um......"

"Hehehe, hehehe!"

"There's one left, but the shape is...?"

"Ah."

Krrr. In the summoning circle, a giant wolf with electricity sparking on its skin was ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠baring its teeth fiercely at me.

"......Jackpot."

As expected, when it comes to radar, it's a wolf. At exactly the 40th pull, the monster I had wanted most had appeared.