The first one that comes to mind for me got to be "Rest assured! As a most wonderful fact, I Kyouka-sama am omniscient and omnipotent!" as it practically defines her personality.
I have collected here the words Kyouka-sama from the opening of each episode for your enjoyment.
ep 01
This is a story about Kyouka-sama told by Kyouka-sama for Kyouka-sama!
ep 02
You pigs aren't in shape!
Watch with a heart that's like a mirror without a single flay or a perfectly still pool of water!
ep 03
Stand, you pigs!
Don't you forget that you are the ones chosen to worship Kyouka-sama herself!
ep 04
Have you gone to the bathroom already?
How about your prayers to this Kyouka-sama?
Are you ready to sit in the corner of the room and stare at your TV?
ep 05
You pigs watching this!
I will take over your brains with my Cellphone!
You shall bow before my wisdom and power!
ep 06
The party will start soon.
It's a wonderful party, therefore it'll be pointless if you don't watch it.
So pigs, let's get this started, shall we?
ep 07
80%?! You've got to be joking!
My character setting is 100% complete!
Pads? Those're nothing more than decoration to Kyouka-sama!
ep 08
My Darling Ouka - handsome, kind, and so charming.
This is a story of Kyouka-sama who loves you so much, meow.
ep 09
This anime is a story about *BEEP* featuring a super-pretty girl, Kyouka-sama, and her family.
ep 10
Do you know the family frenzy?
They're famous for running around the neighborhood.
The world is a mess.
Pay attention, else you'll get stabbed in the back.
ep 11
Midarezaki Kyouka, age 20. All of a sudden I have to fight against the evil that tries to take over the world.
Everyone, let's go!
We'll serve for the Earth's future, meow!
ep 12
What's about to start is a story of meetings and farewells.
Kyouran Kazoku Nikki, starting.
ep 13
Practicality is a rule that exists in the normal world.
Unfortunately, it isn't enough to limit the Midarezaki.
Parties only happen when you allow yourself to go nuts.
ep 14
It's absolutely rude to use rationality against frowziness.
So allow me to show you the minimum frenzy required!
ep 15
Don't swear to someone else. Swear to yourself.
Swear to yourself that you will watch the Midarezaki frenzy.
When you do, that door shall open!
Pigs! Drown in your tears of joy!
ep 16
Pigs! Discard your kindness!
Who cares about friendship and whatnot just to simply live?
It's a wrong equal to doing "number 2" on a top of a five star dish!
ep 17
Do all pigs with talent succeed? No!
However pigs who have mastered an art have one similarity.
And that's belief!
Do you have that in you?
ep 18
That's right, it's Kyouka-sama.
The World's greatest peace lover.
Where there's a villain, I'll punish 'em.Where there's a good guy, I give 'em a spanking!
Time fore another frenzy party!
ep 19
Klutzy girls, failure girls, bean sprout girls.
Our worrier is a glasses girl!
Add a "girl" to the end, and they all become a moe factor!
I object to that kind of world!
And I'm the cute absolute god, Kyouka-sama!
ep 20
The maidens who assemble in Gojyu Hissatsu Academy today, too, go over high hurdles with smiles on their faces.
The pleats on their skirts should never rip.
No weapons should peek out of their sailor collars
First hit wins! One-hit kills!
Hitting before being hit is preferred here.
ep 21
Hi, kids in front of the screen. To what age did you believe in Santa Claus?
More like, when did Santa Claus disappear?
If he's gone, then you become the new one!
Stop sitting around! The bells will toll in a few months!
ep 22
A small house located in the Great Japanese Empire.
There, you'll find a girl with twin-tails, a simple girl,
and the one, the absolute, the unique god, Kyouka-sama!
ep 23
Tsundere, kuudere, yandere. They're all ancient relics now.
The ultimate and the invincible genre:
That'd be goddere.
It's not like I'm being omnipotent and omniscient for your sake.
ep 24
This story is a diary of a family that fought against the expected doom.
The miracle of eight people without blood relation becoming a family without missing any details.
ep 25
The one and only hubby in this world who is handsome, kind and charming.
This is a story of a cat-eared wife who loves her husband, meow.
ep 26
Don't think this is the end!
This frenzy party will last forever!
I just decided that it will!
"Will that be all right?" you ask?
Rest assured! As a most wonderful fact, I Kyouka-sama am omniscient and omnipotent!
"Is this a rebellion against Kyouka-sama? We'll blow the whole class up! Ouka! Wrap a hundred sticks of dynamite arond you and dive into them! GO! CHARGE, OUKA BOMB! Go expend your life on behalf of your family!"
Ouka: How should I describe this atrocious condition i'm in?
Kyouka-sama: *smiles* Family Frenzy
"Well, moving on! Forget about Yuuka, who died in action with honor, for a moment!"
"I don't care about your life, quit talking and eat!"
"Why do you climb the mountain? Because the mountain is there to be climbed!
But Kyouka-sama won't!
If it stands in my way, I shall pulverize it to dust in a split-second, wether it be mountain or planet!"