It's me, Dariel.........
　I'm still stranded in the center guild today, and it's been an uneventful day.......

''.........Ho, really?''
Yes, it's true.
Are you sure my sister is your wife, Lady Dariel?

　I have a visitor.
　Maleeka's brother, Mr. Stanville, what was his name?

That means the great hero's son is my brother-in-law...?　How dare you...?
What kind of nonsense are you talking about that's so far off the mark?

　A merciless verbal knife from Maleeka.

'You are a stranger who left the village of Lax. You have no ties to me. Therefore, you have nothing to do with your husband.
It's my older sister!　How can you be so cruel?

I wonder if I'm being poisoned when I think, "It's the same old Malika.

'Oh, yeah!　Baby is so cute!

　And the other younger siblings were also melted by Gran's babyishness.
　Gran was Gran, and he couldn't stop rubbing the woman's breasts as she held him in her arms, which was no longer a regular occurrence.

''..........''

　It's Gran.
　Do you like the way your aunt's tits are rubbing?
　That's your mother's sister.

I can't believe I've become an old woman before I knew it. My brothers couldn't get married at all, so I thought it had a long way to go.
You're a stranger to me, though.

　Why are every single woman in this family so bitter?

"My mom says. Don't think of them all as family anymore. If it gets out that I'm close to them, they'll cut me off from the family too.
Mom, you're right. It is.

　The children who couldn't bear the poverty of the countryside, and went out, were treated very badly.
　But if it was her mother-in-law's work, it made sense.

　Why don't these guys go back to their guild in the town they belong to even though their exams are over?

Excuse me. Just a little bit more, just a little bit more with my sister...!
''I was supposed to get the Class A adventurer's license and decorate my hometown with gold, but I failed, so.... If I let this opportunity pass, when will I ever see you again...?

　Yeah, I dropped it.
　But I was pretty high up on the list of rejects, so maybe you guys will be next time.

　I had nothing else to do, so I thought I'd just watch my brothers touch each other for a while longer.

'Master Dariel!　Order to Lord Dariel!

　Something came.
　A person who looks like a Center Guild staff member rushes over to me in a panic.

''Dariel-sama, the Center Guild Board of Directors has a request for you!　You want me in the board room right away?
What is it?

　I braced myself for another nuisance, based on the pattern I'd been following, but the staff's panic showed me that something really serious had happened.

'Okay, let's go for now,'

You're not going to be able to do that.

　I was a little nervous about leaving Malika and Gran behind, but I wondered if it would be safe to keep my brothers around.

　With that in mind, when I entered the boardroom, the room was filled with an air of heaviness beyond what I had imagined.
　And not only that, Mr. Arantzill and Radie were also there, so even if I didn't like it, I could be sure that something serious had happened.

''Your grandson-in-law is here too, let's have a quick discussion then.

　Mr. Guild President, have you ever been so impatient?

Demons have invaded our human lands.
"How dare you?

　I was the first one to react when she told me.
　That's impossible.

Are you saying that the demons attacked us?　That's impossible!　Demons bringing warfare to our shores?

　From the demons!

　It's no wonder I'm confused.
　The human race sends heroes to harm the demon king, but the demon race has always only fought a defensive battle to prevent it.

　In other words, it's a defensive war.
　There is no such thing as a war of aggression. That should have been the pride of the Demon King's army...?

''Isn't there some kind of mistake?　It looks like the demon tribe happened to invade from the invasion route or something...?

　To those who don't know the situation, my persistent defense of the demon tribe might seem strange.
　But as a member of the Demon King's Army for the first half of my life, I still feel the slander to the Demon King's Army as slander to myself.

"We don't want to believe it, but there seems to be no doubt about it.

　The chancellor says tiredly.

''I heard the intruder's name is 'Ida', one of the four Heavenly Kings of the Demon King's Army. He's one of the Four Heavenly Kings of the Demon King's Army, 'Heaven and Earth' Ida.
"'Heaven and earth'?　Ida?

　How did they get that name from there?

A local guild that was close to the invasion route has already sent some adventurers, but they were all instantly shot back. They said it was a strength level too high.
''That's where the Center Guild needs help. They want all the A-list adventurers they can find. No, they want us to send a brave man.

　If the enemy is the demon race, it would be legitimate to beg for help from the brave men.

　But why is the Ida of "Heaven and Earth" the enemy?
　A celebrity like that?

I need to see...
Too?
'Did the other party really call themselves Ida from 'Heaven and Earth'?'

　The board suddenly buzzes at my question.

Isn't that strange, come to think of it?
"According to my information, the Four Heavenly Kings of Earth are said to be the Four Heavenly Kings of Earth, the Droyer of the Fertile Ground. He's supposed to be a young demoness.
And she's beautiful.
Do you need that information?
They're here!
But the one that is now invading my territory has a completely different name. A replacement?　Does that mean something political has happened over there?

　Or maybe I thought the same thing.
　It's been a long time since I left the Demon King's Army, and even though we have pipes such as Lizet and Zebiantes, it's impossible to know the changes that have taken place over there. Even though we have pipes like Rizzeto and Zebiantes, it's impossible for me to know all the changes that took place over there.

　If the name of the Four Heavenly Kings who replaced Droyer was completely unfamiliar to me, I would have judged them as replacements.

　But if the names of too famous and historical figures had appeared to this extent...!

'The Ida of 'Heaven and Earth' was there seven to eight hundred years ago.
What?
''He's one of the strongest four Heavenly Kings who has done such a great feat in the history of the Demon Race.

　During his lifetime, he repeatedly defeated the attacking heroes 200 times.
　It is said that he was also the one who renovated Laspada Fortress, which was taken from the human side, and transformed it into a complete demon fortress.

He is a great man who shines brilliantly in the history of the demon race. Even in our modern era, we have such illustrious and prestigious names such as Mr. Aranzir and Lady Granbaza, but he is a big name on par with them.''
"Lord Dariel, you are very knowledgeable about the history of these demons. ...No, wait a minute!

　The Council seemed to have noticed the blatant contradiction in this.
　Of course they noticed.

If this Ida of Heaven and Earth is a hero hundreds of years ago, then why does she exist in this world now?
That's right!　I've never heard of anyone living that long, even for a demon.
And why did you call Granbaza his name?

　I know.
　I don't understand that part.

The only thing I can think of is if some idiot borrowed the name Ida for himself or herself.　The only thing I can think of is...

　But still, this is a desperate act.
　It's not only a name, but also a title of the Four Heavenly Kings, which the Demon King personally bestows upon him, which is an act of disrespect that could result in his execution.
　Who would be stupid enough to do such a thing in the Demon King's army nowadays?
　Moreover, he has the skill to kick the adventurers of the local guild to the curb.

　.........This mystery is not likely to be solved by just thinking about it here in a daze.

''Chancellor, please send me over.

　I'll have to go directly to him.

"A ruffian who deceives and invades human territory in the name of Ida of 'Heaven and Earth'. I want to expose its true identity with my own hands.
Well done!　We have called upon you to help us. With the brilliance you have inherited from the brave Aranzir, we will eliminate the enemies that threaten the human race...!

　We were on the verge of consensus.

"Please wait.

　It was Radey who broke in to push back the decision.

'Let me go to defeat the intruders. The enemy is calling themselves the Four Heavenly Kings in spite of their bent. Defeating the Four Heavenly Kings is nothing less than a brave man's duty!