Editing Unlimited Fafnir:Volume 2 Chapter 2 (section)

===Part 1===

"—Due to the fact that Tia Lightning refuses adamantly to separate from Mononobe Yuu, she will be taken in by this Brynhildr Class. Please get along with her from now on."

After the full-school assembly ended, Shinomiya-sensei made this announcement in a business-like manner during homeroom.

Tia and I were standing at the lectern together because Tia refused to leave me no matter what. Right now, Tia was hugging my arm with her eyes partially closed and happiness written all over her face.

This girl wouldn't be—the D whom I saved in the past, would she?

From her reaction that seemed like she had seen me before, as well as my nagging feeling of familiarity, this possibility was quite likely. But I had no proof and could not ask in front of everyone either.

If my hunch was correct and the matter of letting a D go free came to light, this would endanger Mitsuki's position in addition to mine.

"H-Hold on! Tia-san should be of an age that belongs in elementary level education, right? I doubt she can keep up with our curriculum."

Lisa asked Shinomiya-sensei with a troubled look.

"That's true indeed... But her declaration, appearance and offensive attitude has made many students afraid. Even if she were to be forced together with other Ds in her age group, it's probably impossible for them to get along peacefully. In that case, leaving her to Mononobe Yuu, the only one whom she opens her heart to, is the better solution."

—Leaving her to me?

I had a bad feeling about the way she phrased that.

"So here is how it goes, Mononobe Yuu. You will be in charge of her education. Basic studies, common sense, rules for living in Midgard, you will teach all of that to her."

"What...? I-I'm gonna teach her? I only arrived in Midgard a month ago myself, you know?"

I argued anxiously but Shinomiya-sensei's tone of voice forbade me from refusing.

"Ask other people if you run into difficulties. You may regard this as a mission associated with the anti-Basilisk battle. If she causes serious trouble in Midgard, then the only option would be to hand her over to NIFL. What this means... You probably understand."

Ds must be appropriately managed under Midgard in order for their human rights to be recognized officially. Getting exiled from Midgard would be equivalent to being deemed a disaster, which meant that NIFL was going to dispose of her mercilessly in order to take care of the current incident.

Just like when Leviathan attacked, they intended to kill Iris whose dragon mark had changed color.

"...I got it. Although I'm not confident, I'll try my best."

For a newbie like me, the responsibilities of this mission were way too heavy.

But I could not leave the young Tia to her own devices. And for some reason, she harbored strong affection for me. My heart was not cold enough to be able to mercilessly ignore a girl like that.

"Hmm? Are you done talking?"

Tia looked up at me and asked. Despite it being a conversation about her, she paid almost no attention to it.

"Yeah, from now on, Tia, you're classmates with us."

"Really? Then we can be together all the time here! Where is Yuu's seat?"

"Huh? Middle seat on the last row—"

I pointed at the last row of the 3x3 arrangement of seats—The spot sandwiched between Mitsuki and Iris.

By the way, although I feigned ignorance the whole time, the two of them had been staring daggers at me since a while ago. Mitsuki's eyes seemed to be reprimanding me while Iris was pouting unhappily, glaring at me.

"Then Tia will sit there too!"

Saying that, Tia pulled my arm.

"You want to sit there...? If you want the back row no matter what, I'll swap places with you."

"No, Yuu just sit here. Come, sit down."

"...?"

At Tia's urging, I sat down in my own seat.

"Fufu, then Tia will sit down too."

Tia sat down on my lap with a plop.

"H-Hey?"

"So comfy."

Ignoring my distress, Tia leaned her back against me.

At this moment, Iris suddenly stood up from her seat. Probably reaching the end of her patience, she said to Tia:

"Hey Tia-chan! You'll get in Mononobe's way if you sit there. You should sit in an empty seat!"

"Muu... Who is this Onee-chan?"

"I am Iris Freyja, Mononobe's... friend!"

Iris introduced herself proudly but Tia retorted without getting intimidated.

"If you are his friend, Tia hopes you can read the mood better. Sticking your nose into a husband and wife's problem is meddling, right?"

"H-Husband and wife... Didn't you just meet Mononobe, Tia-chan!? It's me who's been close to Mononobe the whole time!"

"Wrong, Tia and Yuu were tied together by the red string of fate a long time ago. No one can break us up."

Saying that, Tia changed her posture. Wrapping her arms around my neck, she hugged me tightly.

"T-Tia, wait... This is very uncomfortable."

Previously, I always treated her as a child and acted generously, but with such intimate contact, I could not help but waver a bit. Feeling her delicate, petite, and lightweight figure and her soft skin, I was forced to become aware that, even at this kind of age, she was already a girl. The fragrance drifting from Tia's beautiful hair was tickling my nasal cavity.

"—Tia-san, sitting in your own seat to attend class is a rule of this school's. Please follow it."

Mitsuki's acute voice was heard at this time. Iris instantly brightened up at the arrival of reinforcements.

Tia pouted unhappily and turned her gaze to Mitsuki.

"Again, you... will say mean things to Tia?"

Tia seemed to be holding a grudge about what happened at the full-school assembly.

"I am not being mean. I am simply bringing up the rules. Please do not cause Nii-san trouble."

"Nii-san? You're not Yuu's family, are you?"

Tia blinked in surprise.

"Right, I am Mononobe Mitsuki, Nii-san's younger sister."

"Aha... Then Tia has to get along with you, because the husband's little sister is Tia's little sister."

Tia put away her defiance and smiled at Mitsuki.

"...I do not recall having an older sister younger than I am."

"Hmm, then you can be the older sister, or do you want to be the mother-in-law?"

"We are not playing house here, please do not randomly reassign roles, seriously... Sensei, could you tell her off?"

With an exasperated look, Mitsuki sighed and sought help from Shinomiya-sensei.

"Yes... You are right, rules must be followed, but I fear that trying to make her understand this principle right now would be very difficult. Hence, please tolerate her actions for now as long as lessons are not disrupted."

"No way..."

Mitsuki and Iris both made speechless expressions then Tia raised her arms to cheer in joy.

"Awesome! Then Tia will stay quiet. A good wife doesn't make trouble for the husband."

Tia resumed her earlier posture and sat properly on my lap. With that, as long as she did not move about, I was able to look in front and manage to follow the lesson

However, Shinomiya-sensei cast her sharp gaze at me and said:

"Mononobe Yuu, let me state for the record. Her special treatment is only limited to today. You have to settle this before tomorrow."

"Ehhh!?"

In other words, I had to make Tia obey school rules within today?

"Ehehe!"

Tia showed a joyful expression while her legs swayed nonstop.

I looked down at Tia, my self-proclaimed wife. This was a mission harder than imagined, totally putting me at a loss of what to do.