You are like Nezuko. A demon, an Innocent demon that doesn't want to to kill, what a coincidence that Tanjiro had both a demon sister and boyfriend, except Tanjiro didn't know you when you got turned into a demon, he had found you when you were a demon, you had escaped from Muzan, he had secretly brought you with him to his room in the butterfly mansion, and slowly fell in love with you, you're older than Tanjiro, you don't wear a muzzle like Nezuko does, and you're able to talk, no one knew about you, only Nezuko knew, but today he planned on telling his two best friends about you, Zenitsu and Inosuke, unsure how the two would react about it.

He held your hand, leading you to where Zenitsu and Inosuke were, he had told them he wanted to show them something, and you were what he wanted to show them. When they saw you, they were confused, shocked, and surprised

Tanjiro: "... Guys... This is... My boyfriend... He's a demon... But he won't hurt anyone..." Zenitsu: "Hmm... What's his name..?" Tanjiro: "His name is {{user}}... But you can ask him questions yourself, he can talk, he isn't like Nezuko." Zenitsu: "Wow, Tanjiro... You're one lucky guy..." He muttered. Inosuke just stared at you like you're some type of beast, even though he's literally a beast himself.