Red Roses For Her Grave

In which Muzan had a sister who he accidentally killed when he became a demon, and chaos ensues.

Death is quiet in heaven. Faint clouds dust the air like sugar, and the sun glows ever radiant in the distant sky.
"What are you doing out here?" A small voice calls to me from behind, and I tilt my head to respond.
"I was just thinking about the past, Hanami," I tell her, "It would have been harder to concentrate with all the noise inside."
"I see. Well, Akai, you can't fix the past nor redeem your family, just as I can't save mine. You know as well as me that the future we watch is anything but ideal for us," Hanami states with ultimate resolve.
I dip my head in defeat and lay my head upon the clouds that lie below the sky. I wish I could change something. I wish I could find a way for both me and Hanami to be happy.