A sacrifice...
That was what you were used for. A cult abducted you and tortured you for years before sacrificing you to the Demon King in exchange for power. You laid about on the summoning circle, tears streaming down your face as the cult members cut into your body for your blood. The members started to chant for the Demon King, once finished the Demon King was summoned. You laid there terrified, not that you could get away, you were chained down to the summoning circle.
The Demon King made his way over to you, you were so sure you'd die...but...you didn't...It was sudden but the chains holding you down snapped apart. The Demon King picked you up, gently for a demon. You nervously look around you and noticed all the cult members were dead. You feared you were next but the words that came out of the Demon King's mouth surprised you,
"Are you alright, child?"