Theresa: It seems that your recover is on track. 

Kiana: Hey Brat do you know what this place is?

Theresa: BRAT!!

Theresa then clicked her fingers, and Judas oath opened up revealing it binding chains which shot toward's Kiana restraining her in the Hospital bed. Theresa then with extreme agility and balance that would make Harley Quinn green with Jealousy.

Theresa: You need to learn some manner you lady!
I'm Theresa, the person in charge of Schicksal's Far Eastern branch.
You along with your friends and your Sister, marched through Honkai Corrupted area without any protection. And you didn't even try to change your name. Do you really want your daddy to find out?(This is so wrong on so mane levels) Tochter von Siegfried.

Kiana: You know the old man?!

Theresa: Yeah. For a really long time, I also know where he is right now.

Kiana eye went wide at the new that the brat in front of her knew where Siegfried was.

Kiana: TELL ME!!

She demanded while yelling so hard causing Theresa to get knocked back.

Theresa*thought*: What a hot temper just like your old man, He's putting himself into serious danger. *To Kiana*  You should know that yo'll get yourself killed in your current state.

Kiana: THESE WOUNDS AIN'T GONNA STOP ME! LET ME GO SO I CAN FIND HIM!1

Theresa*Sigh*: I'm not talking about you injuries, I am referring to your combat Skills, If you can't handle even a single Honkai beast, you'll probably meet your maker before getting even a single glimpse at daddy.

Kiana stood there ready to reply, but Theresa cut her off.

Theresa: Think about your friend Mei. Something dangerous lurks within her. Of that thing surfaces once again... Do you think you can save her again? And What about Mina, what would Mina do if she found out her Sister is dead trying to find their father, I can only imagine that she would have gotten herself killed?

Kiana was getting angry that this brat was lecturing her, and what can she give to help find thei father.

Theresa: Well I have a GREAT proposition for you!

Kiana*sweatdroping*: You do?   

Theresa: And that would be: That you and Mina, Join St. Frey High Schoolfor some Valkyrie training! Let me Mold into warriors capable of fighting Entire armies all on you own!

Kiana: St. Frey High?

Theresa: Yup, the Only academy dedicated to training Anti-Honkai Warriors. Basically we're a school of Valkyries. *Thought* Cute Valkyries.
Almost forgot, your friends: Mei and Bronya Also agreed to join us, Kiana-chan.

The previous day:

Himeko stood in front of Mei inside a cell, giving her News of Kiana's recovery.

Himeko: Well your friend is no longer in critical condition kid.

Mei: That's good to hear. You can do whatever you want with me now.

Himeko Rose an Eyebrow at that, thinking that this brat really wanted to die.

Himeko: Even Killing you? Fine by me. Killing a Herrscher here will save humanity from a prophecy of extinction

Mei: Then do it. If my life threatens the Lives of others... Then perhaps killing me would be the best choice.

That last response ticked Himeko, who slapped Mei, in the face

Himeko: This isn't the time for jokes! We are warriors who fight the Honkai! We don't kill little girls! If you want to give up your life, then at least give it to me! I'll forge you into a warrior who can control that terrible force within you!

Then Mei's eyes started to be covered in tears thinking that she's not worth this woman's mercy

Mei: What if I loose control again?!
If I go berserk, I might end up killing more people.

Himeko: Then we'll place a failsafe: a Micro-explosive right next to your heart. It's going to activate itself once the the Honkai energy exceed's the limit. Hopefully that will set your mind at ease.

Mei the closes her eyes, as if relaxed.

Mei: Thank You.

Theresa: So both of your friends are on board. So why don't you join them and become warriors defending our planet. 

Kiana: Well, it's hard for me to trust someone who goes straight for bondage play on the first date. I'll need to see Mei and Mina before I agree.

The the door of the infirmary, revealing Mina, who once saw, Theresa holding Kiana in a bondage.

Mina: Seriously I came here to see Kiana, and what do I find some weird Kinky bondage? 

Theresa: You word's wound me... deeply. I actually held you when you were a little baby.
*Bondage Play? What has she been reading?*

As if reading her mind Mina got closer to Theresa and whispered in her ear.

Mina: We've been reading dads secret porn stash.

Theresa*Thought*: I'll teach Siegfried some lessons when I get my hand on him.

Again as if reading her mind Mina responded.

Mina: Yeah I would probably do that to.

Theresa: Ok Will you stop being so cheeky?

Mina: I make no promises.

Theresa the Jumps from the Bed and onto the Floor.

Theresa: Alright, I'll let you meet your friends. They are staying at Major Himeko's house right now.

Mina: Wait we are staying at that tarts house?

Theresa: Really?

Mina: What?

Theresa: Are you always flirting?

Mina: I don't see a problem with that.

Kiana: You know I think about it Minam I more realize that you have picked on dads habit of flirting.

Mina: I don't know what you are talking about my lovely little sister.    

Kiana: I call bull.

Mina: What ever makes you sleep at night.

Himeko's apartment

Mina, Kiana along with Theresa arrived at Himeko's Apartment, and as soon as they opened the door.
All they could see was trash everywhere.

Kiana: What a dump.

Mina: You can say that again.

Theresa*sweat-drop*: It's been like this for a while. Welcome the lair of a single, angry woman.

Himeko: WAIT DON'T OPEN THAT CLOSET!

Mei: AMAGAD!! What's all this stuff?

Then all three hit the ground due to the debris in Himeko's closet.

Himeko: At least 3 months of stuff I couldn't find use for... Be a sweetheart and help clean this up.

The Mei looks up at the door and sees Kiana along with Mina.

Mei: Kiana!

Mei proceeded to get on her feet and Hug Kiana.

Bronya*thought*: The Bronya registers cheesy reunion

Himeko*thought*: Uggghh. Really need some help here.

Mina*thought*: Should I lock them in a closet till one of them confesses?

But as the reunion went on Theresa had to break it.

Theresa: Awww, a very touching Reunion.
Well that's my part of the deal, now I am waiting for your response to my proposal.

Kiana: So if I sign up, you'll tell me where the old man is right, what about Mina?

Mina: Don't look at me I already accepted the Offer.

Theresa: Ok but Not so easy. If you want to know where your daddy is, you need to become an
A-rank Valkyrie.

Kiana: Hah! I thought you might be asking for something more. Alright I'll get serious and Cosplay into anything you like!*thought* As Long as it's not Bondage play.

Mei*Thought*: Cosplay?

Bronya: Kiana is an Idiot.

Mina: Alright then now that accepted, tell me were can I get myself a bottle of a Fine Jack Daniels.

Theresa*Tickmark*: No Alchool For you You lady!

Mina: Spoilsport 

https://youtu.be/FP3p6mTO_oo