Muzan Kibutsuji was killed and defeated by the Demon slayers, there was nothing but darkness around him, no light, no sound, no movement, just endless nothingness.

There wasn't an ounce of light in the darkness he was surrounded in, it was complete silence, just a dark nothing, was this his eternal hell.

then suddenly a bit of light appeared behind him, and when he turned around his eyes widened, after all these years, he was seeing you, his mother.

".. Mother."