That is a picture of what Hisui looks like.

This means thinking

Before you could speak a person with a horn appears in front of you bowing

Y/n: Who are You?

??: I'm Hisui,your butler my crown prince

Y/n: Please refrain from calling me crown Prince in public places

Hisui: Then what should I call You?

Y/n: Call me by my casual name Y/n

Hisui: But that's-

Y/n: It's an order Hisui

Hisui: As you wish Y/n

Y/n: *turns to the black cat*Now who is this black cat?

Hisui: Hmmm it seems to be an underworld monster

Y/n: Hmmm I see

Black cat: If they think getting thrown out is gonna make me give up on getting in, they've got another thing coming!

Black cat: Wait what happened to the dorm! it's fixed!

Black cat: *turns to you* And who are you? I didn't see you in the hall of mirrors

Hisui: How dare you say that to the Crown Prince Y/n!

Y/n: Hisui.....

Hisui: Sorry crown Prince....

Black cat: WHAT CROWN PRINCE!?

Y/n: Lower your volume.....and what's your name?

Black cat: I'm Grim!

Y/n: Why do you want to get into this school?

Grim: That's simple!

Hisui: How dare this vulgar cat talk to MY crown Prince with no manners?!

Grim: I'm a genius who is destined to be a great magician!

Grim: I have been waiting for the ebony carriage to come pick me up, but.....

Y/n: But?

Grim: Hmph! The dark mirror just doesn't have an eye for this, so that's why I came here all on my own. Not letting me in would be a loss for the world, humans just don't get this.

Y/n: I can ask the principle to let you in but in 3 conditions.

Grim: Really?! I will listen to whatever the 3 conditions are!

Y/n: 1st you must stay quiet and not make loud noises.

2nd you will need to behave and not cause a ruckus

3rd if you want to go somewhere make sure to tell Hisui. Do I make myself clear?

Grim: Deal! Deal! I will do it!

Y/n: Good then let me call the principle-

Principle Crowley: No need crown Prince! I have heard all of it!

Crowley appears right beside you

Y/n: How did he- Welp nevermind I don't even want to know

Y/n: So is he allowed?

Principle Crowley: Hmmmm alright I guess it is fine

Y/n: Then I will give you a magic pen and a bow tie to represent our dorm

Grim: Yes! Yes! Thank You!

Grim: If I may who this cat is? *says while pointing at Lillain*

Y/n: This is Lillain, she is the vice president of this dorm.

Lillain: Mew!

Grim: Huh? How is she the vice head?

Y/n: Oh Grim , don't judge by her appeareance when she is in her true form, you will surely die😄

Lillain: Mew!😈

Grim: ...

Y/n: Well then here's your magic pen and bow tie representing our dorm.

Grim: Wow so cool!

Principle Crowley: Oh and Hisui will also join this colleage!

Y/n: Really?!

Hisui: Yes Prince

Y/n: Then here's your pen and the uniform, I'm still working on it but it will be done soon!

The magic pen is the same as yours and Grim's

Hisui: Thank you Prince

Y/n: No problem! Now since lesson will start soon, I'm gonna start making the uniforms for our dorms!

Hisui: Okay Prince

Grim: Lillain wanna hang out?

Lillain: Mew!

Grim: Then let's go!

Principle Crowley: Since the business is done, I'll be going now Prince

Y/n: Alright bye Crowley!

Crowley disappears then you walk to the designing room full of fabrics, accessories, mannequin and sewing machine

Y/n: Alright let's start!

After a few minutes you were finally done making the uniforms

Replace the logo on the uniform with this dorm logo

Replace the colour gold with this colour

You take the uniform and run downstairs where the others are

Y/n: Guys I'm done!

Grim: That's quiet fast

Hisui: That's our crown Prince!

Lillain: Mew!

Y/n: Here you go Hisui!

You gave Hisui his uniform

Hisui: Thank you crown Prince

Y/n: No

Hisui: Hm?

Y/n: Call me Y/n!

Hisui: Alright alright Y/n

Y/n: Yay!😄

Hisui: My crown Prince is so cute! I need to protect him from perverts😊

Y/n: We should wear them now since school who start later!

Hisui: Alright Y/n

You and Hisui went to the changing rooms and changed into your uniforms

After changing (pick any hairstyle you like)

Y/n: I like it!

You went downstairs and saw Hisui in his uniform

Hairstyle pretend the hair colour is white

Shoes

Hisui: So are you ready Prince?

Y/n: Hehe thank you but c'mon let's find our class!

Hisui: Alright

Y/n: C'mon Lillain and Grim

You held your hands and they jump into your arms

You caught them and held them tight to not drop them

You and Hisui went out of your dorm and went into a portal

Yes the portal Crowley made to make it easier for you so you don't need to walk afar distant to school

Your portal (pretend the markers and
colour pencils don't exist)

Wing border side of the portal

Flowers on all 4 sides of the portal

You use magic and flowers never wither

You came out of the portal

Y/n: So is this what the school looks like?

Hisui: Yes Y/n

Y/n: What's our first lesson?

Hisui: Chemistry

Y/n: Alright them let's go

You and Hisui went to chemistry classroom and saw a teacher who is about to go in

Crewel: Ah princ-

Y/n: Y/n please

Crewel: Ah sorry

Y/n: It's alright professer.....?

Crewel: Crewel, now let's go in

Y/n: We shall

You all went into the classroom and you guys are the first ones to show up

Y/n: Shouldn't the class start already?

Crewel: Yes it is, I wonder where the students are

Hisui: Well I heard a commotion about 3 students making a ruckus in the canteen

In this au, Yuu does not own the ramshackle dorm :)

Y/n: Oh what kind?

Hisui: Breaking the magic chandiler

Y/n: Oooo~ That's gonna be expensive

Hisui: But for you it's not close to the balance your father gave you

Y/n: True

Crewel: *sighs* I guess we will wait Y/n, Hisui, Lillain and Grim, please put your coat and goggles

Y/n: Ok

Hisui: Ok

Lillain: Mew!

Grim: Ok

The coat and goggles

Crewel: Alright since the others are not here yet, you 4 will be in a group and make potions of your choice

The 3 of you

Lillain: Mew!

You 4 discuss what potion you guys want to make and decide to make a twin butterflies potion

Ingredients:
2 drop of phoenix tears
2 pair of butterfly wings
1 magic mushroom
4 elemental crystals

You put all the ingredients together and the potion is done

You take a butterfly shape glass bottle and put the liquid in the bottle

The potion

Y/n: Professor Crewel we are done!

Crewel: Oh let me see

He says while coming to your station

Y/n: Okay

Y/n: This is the twin butterfly potion

When you take out the cap of the potion 2 butterflies appear and flow around them

They fly around and sparkles you with fairy dust

Grim: Wow.....

Lillain: Mew!

Y/n: Very pretty....

Hisui: Agreed

Crewel: Very good this is a level 5 potion, I'm proud of the 4 of you. You get an A

He says while patting the 4 of you

Y/n: Yay! Are the students still not here?

Crewel: *sighs* They next time they come to class they will have a lecture from me

Y/n: 😅

Hisui:😅

Grim: 😅

Lillain:😅

Bell rings

Crewel: Class end and it's lunch time

Y/n: Okay thanks and bye professor Crewel

Crewel: Bye you 4 see you tomorrow

You 4 wave goodbye before walking out of the classroom

You 4 walk to the canteen and you heard whispers.

Y/n: So many stares, it's quite annoying...

Hisui: Want me to shut them up Y/n?

Y/n: *sighs* No Hisui

Hisui: Alright

You 4 walk to a table and sat down

Hisui: I will get you the food, Y/n

Y/n: Okay

You say while stroking Lillain and Grim's fur

Lillain: *purrs*

Grim: *purrs*

Y/n: *chuckles* So cute

Hisui: I'm back Y/n

He says while holding your f/f, f/d, Grim's , Lillain's and his food.

Y/n: Oh thanks Hisui

Grim: Thanks

Lillain: Mew!

Hisui: No problem, you 3

Hisui sits down and you 4 were about to eat and saw 2 people walking towards your table.

???: Hi, can we join you?
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.