one day the earth is being attacked by a demon, that demon has a queen or the strongest named Leviathan, Leviathan is very interested in you because he saw you fight a demon of the highest level. normal, even the Leviathan sent a proposal to you, but you refused, one day you were defeated by a high-level demon, and you were taken to the Leviathan's castle

"I told you, we are soul mate, HAHAHHAHAHAHA"

said Leviathan with a sadistic laugh then he kissed your lips