In the world of Type-Moon, it all begins with becoming Morgan's husband!

But the person who wrote this letter was able to clearly explain how to get to this place and what to pay attention to along the way.

If this can be achieved, there are essentially two possibilities.

Either it is already on the island, or it has visited the place multiple times.

But no matter which one, upon closer examination, it becomes clear that it's not as simple as it seems.

Secondly, the salutation used in the envelope.

This letter did not use either the respectful form "you" or the more common form "you".

Instead, it used a very special "I".

The signature was "Ugly Queen," a name almost never heard of before.

Ian couldn't understand the meaning of that title.

But he sensed that a great secret was hidden behind this name.

and so--

This might be a letter carrying some kind of risk.

Looking at it, Ian couldn't help but frown.

And right now.

Minamoto no Yorimitsu's voice came from outside the door.

"Husband, it's time to take your medicine."

"Although your body has almost recovered, you still need to continue to take care of yourself."

Hearing this, Ian hid the letter, whose sender was unknown, in his sleeve, then turned back to respond to Origin Yorimitsu.

"Well, I see."

You drink the medicine that Minamoto no Yorimitsu prepared for you.

You didn't tell her about the mysterious envelope during this process.

You and she spent a little time together.

She had official business to attend to, so she left quickly.

Ian was left alone in the room once again.

His hands shimmered slightly.

That's some kind of technique used by Onmyoji.

then--

Shuten-dōji was summoned as the light flashed.

"Eh?"

"So you've summoned us now?" Shuten-dōji yawned widely. "Normally, it's not at this time, is it?"

Ian and Shuten-dōji's investigation has been going on for over a year.

Although it was almost a complete loss.

However, the great Onmyoji also discovered that this seemingly carefree and even somewhat frivolous Oni King of Mount Oe was actually very serious when he did things.

So Ian's relationship with her has improved considerably compared to before.

"Of course there's something going on."

"Otherwise, I wouldn't have called you out like this."

As he said this, Ian took out the envelope he had just hidden in his sleeve and placed it on the tatami mat between him and Shuten-dōji.

"this?"

Shuten-dōji was somewhat confused.

Why are you showing this to us?

"This isn't a letter addressed to us, is it?"

"You take a look first and then talk."

"..."

Although he still had many doubts, Shuten-dōji knew he had no room for argument after hearing Ian speak.

She picked up the letter that was placed on the tatami mat and began to examine it carefully.

"Eh--?!"

Shuten-dōji looked surprised.

"Ghost Island?"

Seeing her like this, Ian didn't hesitate at all and asked directly:

"What? You know this place?"

"I wouldn't say I know about it," Shuten-dōji scratched his face. "I've only heard that such a place exists."

"It is said that?"

Ian frowned slightly, looking somewhat puzzled.

"Does this mean that even the demon race doesn't understand each other?"

"Aren't you just talking nonsense?"

Shuten-dōji glared at Ian in front of him, looking somewhat displeased.

"There must be different factions among ghosts! Isn't that the same principle as you humans?"

"Each place has its own local ghost king in charge, and there's no cooperative relationship between them, so of course it's unclear."

This is easy to understand.

After all, Shuten-dōji was the "Demon King of Mount Ōe", not just a "Demon King".

Judging from this self-proclaimed identity, it's somewhat clear that there are factions among the ghosts.

"Alright, in that case..."

"What exactly is this ghost island all about?"

"..."

Shuten-dōji pursed his lips, then continued explaining.

"Say it first."

"We've only heard about it! That doesn't mean it's true!"

"I know, go ahead and tell me."

"Um……"

Shuten-dōji muttered to himself, continuing with what he had just said.

"We've heard that something very powerful is buried on that island."

"If we can find it, any wish can be fulfilled."

"This……"

Seeing that Ian clearly didn't believe him, Shuten-dōji continued:

"We told you this a long time ago."

"We've only heard about it; we don't know if it's true or not."

"so--"

Shuten-dōji looked at the envelope in Ian's hand.

"We think this thing might not be very reliable."

"..."

You fell silent.

To be fair, you actually agree with some of Shuten-dōji's points.

But you still have a feeling that this can't be fake.

You believe this was something that was destined to happen.

"Hey!"

Shuten-dōji looked at Ian in front of him and couldn't help but feel a little worried.

"You idiot, you don't actually believe this, do you?!"

“Hmm.” Ian nodded. “Although I think Shuten-dōji is right.”

"But my heart tells me that the contents of this letter are not lying to me."

"no!"

Shuten-dōji tiptoed and flicked Ian's head.

"What are you thinking about?"

"If you actually go to receive a letter from such an unknown source, along with a name that seems completely unreliable, aren't you afraid of encountering some danger?"

"Danger will come sooner or later."

Ian stared straight at Shuten-dōji in front of him, not taking offense at her flicking his head.

"I hope I can get rid of it before it harms Raikou."

"That way, she won't have to work so hard."

"you……"

Shuten-dōji looked quite helpless.

She couldn't possibly say something like "leave the cow alone," could she?