Ore to Akuma no Blues

Ore to Akuma no Blues (俺と悪魔のブルーズ) is a manga written and illustrated by Hiramoto Akira.

Plot
Legend has it that if you take your guitar and stand at a crossroads at the witching hour, the devil will appear. He'll grab your instrument, play a song, and hand it back to you. You'll walk away an expert bluesman, but you'll have to pay the price: your immortal soul.