Editing Shinmai Maou no Keiyakusha:Volume 5 Chapter 1 (section)

===Part 1===
Midnight came around, and Lucia appeared on time.

Jumping through space and appearing before Basara and the rest—

“Thank you for waiting…is everyone ready?”

Her tone and liveliness were completely different from Maria’s – relatively cold.

“—We’re ready, please begin.”

Toujou Basara nodded his head and replied. For the past month, everyone had been preparing for this journey.

Other than Maria, they were all wearing their school uniform, including Kurumi who had changed into the uniform she had worn to attend Hijirigasaka Academy’s Sports Festival. Although Yuki and Kurumi had their Hero battle clothes, they decided not to wear clothes that could stimulate the Demons.

Because -- including Basara, their positions today are not Heroes -- but instead just purely Mio’s family and friends.

For their clothes and daily necessities, they had gone with packing for a short trip overseas. According to Maria, their clothes could be washed anywhere and their weapons could be summoned anytime, so there isn’t any personal concerns; both Yuki and Kurumi only needed to prepare the medicinal items needed for the Heroes.

Thus, Basara and Mio each packed a single luggage case, and Yuki and Kurumi had two each, with each and every one being of a different size; Maria has her own residence within the Demon Realm, so she didn’t pack anything.

“Alright, we will now depart.”

With that, a large magic circle appeared in the space beside Lucia and slowly merged into the space, turning into a pitch-black hole.

“My god…”

Kurumi became amazed.

Of course Kurumi would be amazed. Normally, humans needed to fulfil some conditions before they are able to proceed to the Demon Realm. The Demon Race are beings in a higher class than Humans, and that the dimension of the Demon Realm is higher than the dimension Humans are in; the principles in constructing a tunnel from a higher to lower dimension are completely different from that of a lower to higher dimension.

One of the ways for to construct a tunnel was to make use of the overlapping between the Demon Realm and the Human Realm with its lesser numbers, to create space instability in some places and the natural phenomena  -- The 「Dimensional Boundary」. Japan has some places where the Dimensional Boundary has occurred that are currently strictly controlled by the Hero [Village] – without their authorization, those like the exiled Basara and Mio who has Demon blood within her are not allowed to use it. Jin who had pretended to be going to Dubai when in truth going to the Demon Realm when Mio and the rest started living together had probably used a Dimensional Boundary overseas.

''…My dad has got many connections after all.''

Even if Jin has been blacklisted by the Heroes in Japan, the Hero of the Great War is still very popular overseas, so finding a way to the Demon Realm wouldn’t be something difficult for him.

And right now, Lucia who is a pure Demon had just created a very stable Dimensional Boundary that even Humans like Basara can cross, showing a glimpse of her power to them.

…But since Lucia is the Right-Hand Man of the leader of the Moderates Faction, such power was to be expected.

Amongst the Heroes, there were some specialising in creating spells that manipulate space, but Basara had never seen one that are as stable as the one before him right now. Of course, being able to construct barriers or manipulate space does not equate to strong battle power. Just then—

“There’s nothing to be surprised about. Mio-sama has Demon blood, Basara uses a cursed sword, some of Kurumi’s contracted spirits relations to the Demon Realm; just by taking advantage of those demonic fluctuations, creating a Dimensional Boundary that you all can pass through isn’t that hard.”

Lucia said, as if seeing through why they were so surprised.

“…What about me? My [Sakuya] shouldn’t have any demonic fluctuations.”

“—Affirmative, Yuki’s spirit sword doesn’t contain any demonic fluctuations.”

Lucia slightly nodded in response to Yuki’s question.

“That’s why, I’ve used those demonic fluctuations within your body.”

“Within my body…?”

“The fluctuations from the Master-Servant Contract you had made with Basara. Yuki sis and Mio-sama are both linked to Basara with my demonic power.”

The intermediary Maria, explained to Yuki who was frowning from being unable to understand.

“So, it doesn’t really matter even if Mio-sama doesn’t have Demon blood; as for Kurumi, she recently has been through my succubus baptism a lot, so its fine even if she doesn’t have any demonic spirits, they all would be able to pass through onee-sama’s Dimensional Boundary.”

“ ! …T-That was why you had done all those things?”

Upon seeing the red-faced Kurumi coyly <ref>shyly, embarrassed</ref> ask, Maria replied all smiles:

“You’re wrong. I was unable to hold back my succubus instincts, and vented my libido on you.”

“Y-You idiot! Why do I have to handle your libido!?”

“C-Calm down, Kurumi. If you give in to Maria’s tone, you’ll fall into her trap.”

“ ! ….Big sis~”

Kurumi immediately plunged into Yuki’s arms after being warned by Mio, and Yuki began patting her head to placate her.

Yuki is showing such a happy face…such glaring big-sister’s-love radiance.

「…………」
 
Lucia quietly watched all this, her eyebrows not wrinkling even once. Even while standing still in a very natural way, she didn’t show any sign of any flaws or struggles, while maintaining the Dimensional Boundary. Her outer-appearances are similar to Maria’s adult form, and she could very well be a S-Class expert.

“……Is anything wrong?”

Seeing Lucia sense Basara’s gaze, she replied [Nothing] and turned to Mio and the rest.

As if seeing what this meant, they became serious and stopped making a ruckus.

Toujou Basara thus said to the four of them:

「——Let’s go.」

They nodded -- and walked towards the Dimensional Boundary in a single file.