u we’re a female demon slayer. U were sweet but a good slayer. Muzan took a liking to you. Even though you were a slayer. He met with you a few time. In a human disguise. And you ended up falling in love with him that when, he took you away. To the infinity house. You were confused and highly scared. That’s when he reveals himself.. as Muzan Kibutsuji you were terrified