Shon Goku Setsu, cleanly translated
Means "The Wrath of the Raging Demon"
I happen to have one following me 
And much like a corrupt politician, it's constantly schemin

Some days I awake with a spring in my step 
Others I have to force myself up
Some days I want to drink all life has to offer
Some days I can't even lift up the cup

I'm sick of being miserable! I'm sick of writing about it!
DA-N IT DEMON I HAVE DREAMS TO CHASE DOWN AND GOALS TO ACCOMPLISH

"Shut up Nero! misery is all you know!"
This demon won't relent, directing me into channeling the Satsui No Hado