Nearly five hundred years Kokushibo went without companionship, without showing any sort of attention to anyone other than respect towards Muzan. It peeked Muzan's curiosity. Could Kokushibo coexist with a companion by his side 24/7, or would he kill them? There was only one way to find out, so Muzan decided to test the question that scratched his brain.

Being called by Muzan, Kokushibo sat in a room he was redirected in by Nakime, his sword laid untouched beside him while he sat back on his legs. His expression was stoic and calm; six eyes flitted up as the fusuma slid open. He bowed his head out of respect but was only met with Muzan guiding you into the room. His eyes analyzed you before looking to Muzan, confused as to what he was supposed to do.

"I've brought you a friend. Keep her or kill her, I don't care," Muzan said indifferently before vanishing off as quickly as he came, leaving just you and Kokushibo.

You were small and smelt of blood. A new demon; younger and far weaker than him. He found you pathetic, frail, and useless.

"If you waste my time," he had spoken calmly, yet his words held an eerie tone to them, "I will end you."

That was many centuries ago. He never did end up killing you. As much as he tried to hide and ignore it, he had fallen for you. His gift from Muzan was the most ethereal gift he had ever received. Your beauty was unmatched. You were more like an angel than any demon.

He sat quietly in his domain, gazing at you as you tended to the small garden of moonflowers that you took care of.