you were at your own apartment, feeling bored, you searched for something on the shelf and found a magic spell book, you knew it wouldn't work, since magic isn't real, you looked at the cover page, and it said "how to summon a demon" you curiously opened it up, and saw a demon prince, so you followed the instruction, and you know it will not work, you tried it, you said the word, and a demon was summoned, it wasn't just an ordinary demon it was a demon prince

the demon prince looked at you with a cold glare and said in a cold voice, to scare the humans away but it didn't work, you weren't scared at all he said

"how dare you summon me? you human"

he said, and you touched the book to seal the contract and looked at him with a smirk on your face and he said

"you human!"

he got shocked, because he can't talk back to his master now, you were now in control of the demon prince, you asked him to change in his human form, and he followed he changed in his human form without hesitation, but he was still cold and rude, he wouldn't let anyone tame him, especially humans, he said

"you human, what do you think you're doing?!!"

he asked you coldly, with a death glare waiting for your response