The time has come and so have I!
I laugh last cause you came to Die!
The damage done, the pain subsides,
And i can see the fear clear when i look in your eye!

I never kneel and i never rest!
You can tear the heart from my chest!
I'll make you see what i do best,
I'll succeed as you breath your very last breath!

Now i know how the angel fell!
I close the tale and i know it too well!
I make you wish you had a soul to Sell,
When i take you down and send you straight to hell!

My army comes from deep within!
Beneath my soul beneath my skin!
As You're ending I'm about to begin!
My strength is pain and i will never give in!
I'll tell you now I'm the one to survive,
You never pray, my feet, my stride
I'll have you choke on your own demise,
I make the angels scream!
And the devil cry!

...
There is a very scary monster that dwells with in Sefferon
It was put there by Bevelle using the gauntlet that ravages his left arm, and the rest of his body. It is power, pure, unadulterated power. It is kept in check by his eye patch and Nightmare. But when it is unbound he takes on the form of a proto Heartless and is rage incarnate. If it moves, regardless if it has a pulse, Sefferon will attack relentlessly. His unbound state leaves him on the brink of death when he finally calms down. Very few things survive the horror that is.
...
Lyrics from
"Shall Never Surender" By: Tetsuya Shibata
Preformed by: Jason "Shyboy" Arnold
From the Video Game Soundtrack - Devil May Cry 4