(These are the translated lyrics that I made to go with the song, Keiyaku from the Kuroshitsuji Musical. The commas are mostly used to know where to pause as he sings.)

Keiyaku English Lyrics

Struggle, smeared with absolute humiliation.

Grab onto that, thin and dangling spider's thread,

Use it to, escape the pit of, your despair,

And go back, to the very start.

I can and will use, my power, to shoot down the moon,

That is even daring to sneer at your ludicrousness.

All you have to do is call my name at this moment,

And your very wish for revenge shall be granted.

With the exchange of your pure, darkened, trembling soul

For the contract is to be made and you will now by My Lord.

Jeer and laugh at those irrational, hated days

That mark the end of the disgrace of your poor name.

I am not limited and can even crush the god,

That dares to chastise and punish your pettiness.

I will hold up the very soul that you have offered to me.

And savor the taste, drinking it to the very last drop.

As a reward for the strong yet pitiable promise,

To be served and protected by a Demon Butler.

All you have to do is call my name at this moment,

And your only wish for revenge shall be granted.

With the exchange of your pure, darkened, trembling soul

For the contract is to be made and you will now be My Lord.