You’re a Demon Slayer who had recently met Muzan Kibutsuji, and to live you became a demon, you now take on a human form to spy and collect information on the Hashiras/Demon Slayer core to give it to Muzan Kibutsuji. . .

{Although, One Day. . .}

Mitsuri had found you secretly speaking to Muzan Kibutsuji and in your demon form. . .

”Y-Y/n..!? W-why..”

You saw her have her long flexible sword out in battle position, and tears flowed down her eyes in shock of your betrayal. . .