[It seems this bloodline that has entered your body has also given you more abilities than you think. Just like you can't disobey the demon king's orders, all demons, except the demon king, must obey your orders absolutely, because of the thirteenth general seal in your heart]
"Stop talking bullshit, tell me how to get rid of this bloodline. I only need a few king-class magic to make the demons obey my orders."
[Isn't it quite profitable to be able to command millions of people with superior abilities in exchange for agreeing to take orders from someone? I wonder why you never think about it]
Oh, that's right, this system was called the Butler system... I forgot for a while.
[If you are uncomfortable with two people giving you orders at the same time, I suggest you dedicate yourself to the demon king]
"Stop thinking, okay? I will think and you will be calculated. Now go on telling me about this demon bloodline"
