"Now, I'm outta here Shiori. Hope that breakfast cheered ya up," I say to Shiori as I head out, seein' she had a tired look on her face the whole time.
"Wonder what's goin' on in that head of hers... well, looks like seein' me and Kotori ain't ruined my chances with her," I think to myself. If my plans went south and Shiori started distancin' herself from me, I'd have to kidnap her, but since that ain't happened, I don't think I'll have any issues.
I head to an alley so I can instantly teleport to the basement through a Spatial Gate I can make with my Inversion.
Gettin' to the basement, I start walkin' around calmly. By now, talkin' to Origami every day's become a routine, even though what she says is kinda limited 'cause she's usually just cussin' me out or askin' me not to do anythin' to her parents.
"...Guess I've made up my mind 'bout what to do with Origami... just need Kurumi's help," I say as I approach the room Origami's chained up in and enter.
"Mornin' Origami, Iā!!!" I raise a barrier and start healin' Origami as I take in the sight before me.
"...Who?" I feel pissed that someone's invaded this place for a second time, though I thought 'bout puttin' cameras but dropped the idea 'cause someone could just hack 'em.
Lookin' at Origami closely, she's been beaten up real bad. She's got injuries all over her body, and one of her arms has been ripped off, with blood formin' a pool underneath her. Seein' as she's naked, I can see an insane amount of cuts all over her.
"Don't know how she's still alive with these injuries... who did this to her?" Whoever did this to Origami clearly wasn't havin' a good day. Even with my Inversion, it's takin' a while to heal all these injuries.
"There's somethin' else... why's it takin' so long to reverse the arm?" I walk over to the lost arm and examine it carefully.
"Huh? What could've done this kinda injury..." Origami's arm ain't been cut off, nor was it ripped off with brute force. It's like it's been corroded, but different from any acid I've seen before, leavin' a purple and black trail where it made contact.
"...What the hell did this?" This is some bizarre shit, even my Inversion's takin' a while to heal Origami, and this injury's somethin' I ain't never seen before.
I use Inversion to forcefully wake Origami up. She slowly opens her eyes and groans in pain.
"...So, who did this?" I ask her, thinkin' she should know how it all happened and who invaded the basement.
"...Your girlfriend and sister, who else?" she replies sarcastically.
"...Girlfriend? Sister?" I ain't got either of those, so who's she talkin' 'bout?
"That crazy girl who's obsessed with you... a total psycho," she answers bluntly.
"..."
"I don't think you're the best person to talk 'bout love obsession, ya know?" she seems kinda pissed, but don't say anythin' else.
"So describe this girl..."
'Who's this girl that broke into my basement? And how'd she do it?'
"...I don't know," she says, not sounding too sure.
"How? Was she hidin' somethin'?" I ask, confused.
"...No."
"...Could you explain how you didn't see the intruder?" I'm startin' to get annoyed with all this beatin' 'round the bush.
"Kinda hard to see when you're gettin' the shit beaten outta ya, y'know?" she says, lookin' me straight in the eyes.
I take a deep breath.
"Okay, could you explain in detail what happened?" I ask calmly.
"A few hours ago, the door opened, and I thought it was you, so I raised my head to look... but all I saw was a kick comin' right at my face," she explains, sounding indifferent.
"I fell to the ground after that... then this girl started kickin' me repeatedly while I tried to protect my head."
"She kept yellin' 'bout how lucky I was to be able to stay here with you, and complainin' 'bout how it was unfair that I got to see you every day."
"She kept sayin' I was an ungrateful bitch who didn't understand her kindness... then she used some kinda sharp object to cut me while talkin' 'bout how much she loves you, and that you were the only one for her. She said she wouldn't kill me 'cause you might have a use for me."
"After cuttin' me for a while, she used somethin' big to cut my arm off... then she said she didn't have time to waste on a slut like me, since she had to make breakfast for you. So she grabbed my head and slammed it hard against the wall, and that's when I passed out... until you woke me up."
Origami finishes her explanation.
"..."
'I don't think she tried to kill you... in the state you were in, it was obvious you'd die...'
"Wait, you said breakfast?" Origami nods.
'She could still be here, I gotta check.'
"I'm goin' to see who this... person is," I say, leavin' the basement to let Origami rest.
I run through the halls and take the elevator up in a hurry. After a bit, I reach the surface and rush to my kitchen.
"...???" The scene I see shocks me a beautiful young woman with long, flowing blonde hair that's taller than her body, her mature curves and large breasts giving her an adult appearance despite the youthfulness of her face, but her eyes are completely black, without a hint of life.
"...Mukuro?"
'HOW THE FUCK IS THIS GIRL ALIVE?' I'm surprised as the girl runs towards me, then jumps up to hug me tightly.
"Brother Aurelio, Brother Aurelio, Brother Aurelio, I'm so happy to see you!" she hugs me tight, nuzzling her face into my chest.
"..."
'...Brother?' I'm confused by Mukuro calling me her brother.
"Mukuro... what happened to your eyes?" While many things catch my attention, her eyes are the most disturbing.
"...I'm not sure, brother," she replies, unsure.
"I see..." I use Analysis on her to see how this girl is still alive, and she clings to me the whole time, which I simply ignore.
"WOW" I'm impressed by what I discover Mukuro's body is now nothing short of disturbing. She's almost like a walking corpse, her body not functioning properly, almost like a marionette.
'That explains the lifeless eyes.'
Furthermore, her true body is her Sephira that's inverted and become a Qliphoth. Her soul has completely fused with the crystal, becoming her new body, with the Qliphoth simply using Mukuro's old body as a puppet.
In this state, she reminds me of the magical girls from Puella Magi Madoka Magica. Basically, in addition to Mukuro being much more powerful, she's now independent of any damage her body sustains, as long as her Qliphoth doesn't break.
I return Mukuro's hug as I think about what to do with her.
'...She's inverted... in the anime, she already had a slight Yandere tendency... now I don't even wanna imagine how crazy she can get with love...What a terrible variable I created...'
I can already deduce what happened since I kept her soul in the Sephira, when the crystal inverted, it started being assimilated by Mukuro, and the two became one. Then the Qliphoth probably connected to Mukuro's intact corpse.
'So the one who broke the basement that time was Mukuro herself, not an intruder.' I never expected Mukuro could come back to life on her own.
'She must like me because of the illusions I made her have before killing her... since she can't distinguish between real and fake, she just believed it... this is a problem... I have no way to control such an unstable Mukuro... I need to find a way.'
I decide to fix some things first, then call Lars and ask him to add Mukuro to my family registry as my sister.
'Shit, I already told Shiori I don't have any relatives... I'll have to come up with an excuse.'
Mukuro never let go of me the whole time, rubbing and sniffing me like a pervert.
"Mukuro..." I say in a happy tone with a gentle smile, making her look at me.
"...The breakfast is gonna burn if you don't take care of it..." I see smoke coming from the kitchen, since she spent several minutes hugging me.
"!!!" She gets up, not before giving me a kiss, then runs to the kitchen.
"..."
I use Belial's ability on myself to acquire all the illusions Mukuro saw, so I can know what I really am to her.
"..."
"..."
"...HAHAHA" I can only laugh at this.
'Looks like next time I put someone in an illusion, I shouldn't leave it on autopilot.' By leaving Mukuro's illusions to just happen without defining anything beyond the basics, it's become a mess.
Apparently, the path of the illusion was that Mukuro, who lost her parents, went to an orphanage and was then adopted, but her new family mistreated her, with her parents not caring for her and her sister beating her. After years of that, she was saved by me, who appeared and killed her parents.
Then there are various other things, after which she's adopted as my sister. But then my parents died, and it's just the two of us. Because of that, we grew closer, and she fell in love. After a while, we started what could be called an "incestuous" relationship she's not my blood sister, but my adopted sister, so to some, this would still be wrong.
'This is good, there aren't many inconsistencies, so she has no way to discover it was all an illusion unless I say so... so I just need to maintain this charade forever. Plus, Mukuro is strong, so I can use her in many ways.'
'The biggest problem is her Yandere tendencies... I need to figure out a way for her not to attack Shiori, it'll be a problem for my plans if something happens to her...'
"Mukuro, can I take a photo of you?" Mukuro hears me and eagerly appears.
"Of course, brother, we don't have any photos together, so this is perfect!" She hugs me with a smile, striking a pose so we both show up in the photo.
"..."
'Not what I expected, but it'll do.' I take the photo, then start writing a message. Mukuro went back to the kitchen with a smile.
I send the photo to Lars along with a description and some of the data from the illusion, so he can add Mukuro to my family registry and create an identity for her. He'll also forge some data to make the illusion I created real implanting evidence of abuse related to Mukuro, so anyone who looks into her will think she really went through mistreatment in her adoptive family.
I also asked him to enroll Mukuro in my school, in the same class as me. Even though she might cause problems, I prefer to keep her where I can observe her, not wanting her to do something like what she did to Origami again.
"Mercenary..." I whisper into the phone.
He sent me a huge bill of 300 million just for the identity, without even including the rest. I tell him he can just take the money from my account without asking, knowing he won't steal from me since he'd lose a client.
"Brother, the breakfast is ready, I made it with lots of love, I'm sure you'll love it!" My relationship with Mukuro hasn't advanced much, the most we've done according to the illusion is some basic skinship.
I start eating while complimenting her.
"It's delicious, sister... sister, I've decided to enroll you in the same school as me. I kept you at home so you could get used to things, but it's time for you to start socializing."
She seems excited at the prospect of being able to spend time with me, though she hides the hatred she has for having to meet other people. I ended up turning Mukuro into a sociopathic lunatic who has a deadly hatred for humans. Since she knows I'm a Spirit, she doesn't have a problem with me, but the fact that she didn't even like my "parents" is concerning.
I think I might have exaggerated a bit when making her hate the family, never imagining the hatred would extend to all humans.
"Of course, brother, I'll do whatever you want," she says in a somewhat suggestive tone.
"..."
'I feel I'll have terrible headaches trying to control this Yandere Xenophobe.'
The breakfast she prepared is truly delicious, though I was already full from eating at Shiori's place. Since Mukuro, according to the illusion, is a Hikikomori, she doesn't know what I do outside, but she knows about the things I do inside, which is how she found out about Origami.
"Mukuro... you don't mind if I kill innocent people?" I ask directly, with doubt.
"No," she replies indifferently.
"Those disgusting humans deserve to die, I don't care at all what happens to those bastards."
'Unexpected... never thought she'd be so indifferent to other people's lives.'
I kiss her forehead to calm her, and she blushes shyly, going back to that cute little sister mode.
"Hehehe," she giggles happily at the kiss.
"Sis... could you tell me what your Demon King can do?" Mukuro is now an inverse Spirit, and I wonder what her Demon King's abilities are.
"Of course," she says enthusiastically.
"My Demon King is
"Basically, my Demon King is now a powerful Lance capable of destroying everything it pierces, while also having the ability to imprison things."
"Amazing, sis," I say, smiling at her.
'Amazingly dangerous. With that ability, she could probably kill me in a fight... that explains the weird injury on Origami's body, a truly fearsome Demon King.'
'However, with so many possibilities...' I think of the many things I can ask Mukuro to use those abilities for.
"Sis, since I don't have class today, how about a trip out?" I invite her.
"A date, yes, yes, let's go, I'll get ready!" She gets excited at the mention of going out and rushes off somewhere.
"..." I follow her to see where she's going.
'A room... when did this room appear... I sense Reiryoku in it, must be part of her Imprisoning ability. I don't know how this skill works, but it seems interesting.'
I go to my room to prepare for a "Date" with Mukuro. I should at least see how she reacts around others, so I can think carefully about what to do.