Soul Eater

He is called "Little Demon" by Soul Eater, he is a strange demon of tiny size that appeared before Soul inside his heart after his first encounter with Ragnarok. The Little Demon normally resides in a specific room within Soul's mind, called The Black Room."

Little Demon:
"Swing, swing, swing."

Little Demon:
"Wouldn't it be nice to have a strong mind, one that can get rid of the fear you feel?"

Little Demon:
"Seek out the power you need. Find a rule to break, it will make you stronger. Stronger perhaps then you thought possible."

Little Demon:
"Come with me. Overwhelming madness & power await."

Little Demon:
"Come on, Soul. There's no point in struggling anymore & you know it. It's time to wake up & accept the inevitable. Let me make you stronger."

Little Demon:
"You're going to die if you don't do something, just leave it to me. Do away with reason, let me make you stronger."

Little Demon:
"You can't beat the Demon Sword's madness that way. You're sadly mistaken if you think reason & discipline will give you the power you need now. Those aren't enough, I never have seen anyone have it that easy."

Little Demon (to Soul):
"Just a minute, you damn brat!! You're turning into a little pathetic log all of a sudden!! What happened to all the spirit you used to have?! Where's your pride?! Forget reason!! Just let loose & go crazy for once! What kind of log are you to live without a little insanity thrown in?!!"

Little Demon:
"No the shows only just be beginning there's no more time to think about it, the stage is all set for the big concert, its time to play."