The place is the innermost part of the tenth layer (...) and the world's most impenetrable realm.
　The war of the adventurers will never end. This battle will have no end.

　Because the king of the demons will not be defeated.
　No adventurer has ever stepped into the realm that promises eternal struggle.
　Because he would know his defeat before he reached it.

　I, who visited as the Demon King's Army Chief of Staff, Remegeton, should not be counted.
　Apart from the chair prepared in my tier, there was someone sitting on the true throne.
　Our King.

　The space is like an audience chamber.
　There is a throne and a long step leading from it, with a blood-red carpet from the end of the step to the door.

'Once again, the adventurers have come to invade the tenth level.

　A young body, a young voice. It was supposed to be her, the same as usual.
　There was nowhere near the familiarity of the usual, but a pressure as if gravity had increased tenfold.
　It even felt as if the space was chattering and trembling.

　A true Demon King's bloodline. My master's direct lineage. The supremacy that he wears is enough to kill a person by itself.

But I have no worries or complaints. I know the time when they will trample my territory will not come for ever. Isn't it?　--Remeghton.

Ha.

　Beneath the steps connected from the throne, those under her command who were assigned to be the floor boss were gathered.
　In addition to the other three under my direct control, I could also see the demons participating in the defense.

　Even though they were allies, I couldn't include the 【Emperor of the World's Bravest】Elly party. The leader, Ellie-san, also said, ''We'll decline from here. We have to uncover the most delicious part ourselves," she laughed.
　Similarly, Fenix, Lily and Nicola-san are not here either.

''They will suffer the same end as the [Brave Men of Fire] and the others.

Mm, that's good to know. What do they have to offer?

　I nodded one nod and turned my back to the Demon King.
　"You've done a great job so far.

You have done a great job so far. You have done a great job so far. You have used your four resurrection powers. That is a great victory for us.

　None of the men under his command raise their voices. They just listen to Lemegeton's voice.

"Obey me not, do not say, do not say, do not say...

　Last time I said it. I told you last time, because I was going to win in a very small space, and I needed my people to follow my orders.

　But not this time.

"My tenth layer has evolved just like you. The words I command have changed.

　I look over at them all and say.

"Do as you please. Run over the enemy with all the strength you have. Destroy it and prove it.

　He pauses for a breath, then declares.


"No one can capture the Demon King's Castle.

　A roar went up.
　The Demon King also stood up and waved his arms.


''Go, my beloved demons.''


　It's not an exaggeration to say that all of the demons in the Demon King's Castle respected the Demon King-sama.

　【Vampire Queen】 Carmilla was treated coldly in the previous dungeon and her path to reemployment was halfway closed. However, ignoring conventions, the Demon King decided to hire her.

　The [Devil in Love] Sitely preferred the [Dream Demon] form, but no one would want to hire him for that. However, she wanted to work in the dungeon in her preferred form. The one who reached out to her was the Demon King.

　【Devil of Time】 Agares also said that the Demon Lord saved her heart and made her decide to work.

　The same was true for [Ship Horned Dark Mage] Remegeton.

　It was Mira-san who invited me to join her. It doesn't change the fact that she's a benefactor.
　But who on earth, other than Lucy-san, what kind of dungeon boss would allow that? Even interviews are usually not accepted.

　Demon King-sama was different. Even if it was because of Mira-san's encouragement, he set up a place to consider whether or not to welcome the much talked about [Black Mage] who was kicked out of the fourth-ranked party because of his incompetence to the Demon King's Army.
　Our king, who is small and young, is the one who is worthy of serving.

　I won't let anyone violate the 10th layer where she is.
　That's the only way we can repay the favor.

　[Hell's Guard Dog] Naberius, [Invisible Slaughterer] Grasshara Bolas, [Dead Spirit Leader] Chimaris, [Hunter of the Dark Scar] Lerager, [Vampire Queen] Carmilla, [Skewer Lady] Hagenty, [Werewolf Leader] Markosias, [Devil of Love] Sitely, [Ruler of the Waters] Wepal, [Eloquent Thrush] The companions of the Demon King's Castle, such as [Public] Kaim, [Monstrous Raven] Raum, [Reaping Knight] Fulkas, [Demon of Time] Agares, [Unicorn Poet] Amdusias, [Demon Eye Assassin] Botis, and [Black Seeker] Phoras, all feel the same.
　--[Sea Monster] Forneus is not here due to his size and ecology, but the feeling is the same.

　The Orcs from the "Beginner's Dungeon, the Beginning Dungeon", aka [Generous Sage] Ronoway, and the Horse Man, aka Kay, aka [Reiqiqi Archer] Orobas, are also full of enthusiasm.

　There's an expression to put your mind to it. There may be some people who don't get the idea.
　I'm not good with guts either. I don't think it's enough just to work hard.

　What you need is the right amount of effort and a sense of purpose to do it. If there are people and words to support you, you will be able to do your best.

　Just as you get a warm feeling when you are touched by someone's kindness.
　Someone's actions and words have an effect on your spirit.

　Our respected dungeon bosses are watching us, and they don't doubt their victory.
　That fact burns your mind.
　That alone makes it worthwhile to have gathered like this before the battle.

'Are we ready?　Ren

　There is currently only one person who calls me that.
　I flew directly from the record stone for transfer to the tenth layer and was greeted by 【Ellie the Greatest Hero】.

　A rank 95th-ranked hero with impressive silver-gray hair and hanging eyes.
　Considering that there are over tens of thousands of official parties in the world, you can see how excellent she is.
　She and her friends are our allies for this time only.

''It's finally done.''

　Ellie smiled happily.

'Lovely. I'm sorry for your company, but I'm hoping that you and your friends will get your turn.'

　If the adventurers are to fight us, they will have to defeat many enemies before they can do so.
　That's how the new tenth layer works.

"Then you will work to your heart's content.

Yeah, I'm not looking forward to that.

　I heard Ellie murmur a small, "Not only do you have to fight them, but you have to mean it.......
　She looked up at me with a fierce smile on her beautiful face.

''Well then, Chief of Staff, have a good day?''

　He says in a somewhat joking, tickling voice.
　I nodded and headed to the tenth layer and the first area (,,,,,).

　Not long after, the adventurers arrived.
　【Aerial Storm Brave】, 【Gale Brave】 Yuan, 【Magic Sword Brave】 Helwor, 【Fast Lightning Brave】 Skaha, 【Distant Bladed Swordsman】 Hamil, 【Suri the Invincible Archer】 Suri, 【Lake Brave】 Wraith, 【Destroyer】 Fran.
　A total of eight adventurers. The survivors of the seventeen of us.

　My eyes met with Aerial-san.

''Oh, will you suddenly be the one to take care of me?

You can't mean--

　The ring is flooded with magic.
　The contractors respond to the summons - and they appear.

　The final battle is about to begin. It will be the last time, the battle for the Demon King will not continue.