This is a fanfic of the Korean comic Noblesse/"The Great Noble".
Not too long.
Not too cruel.
King Leif said.
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"A soul oath is signed here. You will be bound by my blood. Are you willing?"
You are mine. And I'm yours. From this day, until the end of my days.
(You are mine, and I am also yours. From this day forward, we will be together till death.)
"Yes, my lord."
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"I'm sorry, Master. I love you, so I think the whole world should love you."