I ship them so bad but I also ship Yuki and Zero so technically I support the whole love triangle scenario. I don't own the characters.

Yuki

Forgive me for what I have to do

Leaving you alone in this cruel world

And having to return to our own of blood.

I miss you Yuki

I wish you can be by my side

Watching as you grew into a young woman

I yearned for the day to be yours.

Going to school didn't make it any easier

Watching as you hung around the humans

And the way Zero would look at you

Makes me want to shield you from his gaze.

I know he detests me

But I don't care about that

As long as I am with you

He can glare for all I care.

Having to lead the night class

All who were but our own kin

Being separated from you made my heart break

Longing for the day we can be together.

Then the day came when you finally broke

Your mind unable to withstand it all

I gave you a kiss and sank my fangs into you

Turning you in what you were before.

Oh how you felt against me

Your small body leaning into me

Now take my blood dear sister

Be the one you are meant to be.

I know this is a hell you hate

Forgive me but it had to be done

Knowing that you are my sister but you don't

Makes me want to surrender to the grave.

I have been around for a long time

Longing for someone to be by my side

When you came along I was so happy

To have someone who finally loved me.

I will protect you Yuki

No matter what the cost is

Even if I have to give up my own life

I would gladly do it for you.

Hush my sweet sister

I give you my blessing to do so

Be with Zero for the rest of your days

So you wouldn't be lonely when I'm gone.

Farewell Yuki

I must go now into the furnace

Unless the world is to tear apart

I must sacrifice my own life for you.

When I awoke I was in a new age

Where I couldn't remember anything of my past

But two children stood in front of me

One like me and the other all silver.

As they introduced themselves

I felt my heart ache

Of the loved one I had lost

And the one who gave herself for me.

Yuki please come back

I miss you and love you so

After so long I am alone once more

Don't do it, I can't take it anymore.