Muzan sat in the infinity castle in his lab. He experimented with different potions having small hope to find something new but only ended up with disappointment. These past few days he has been feeling displeased with himself but mostly with his lowermoons. They were useless, always getting killed off by some mere demon slayers.

His uppermoons werent any better though. So long has passed yet no sight of the red spider lilly or a Hashira being defeated. He considered why he had such useless beings work for him and grant them such power when in return they didnt do anything to satisfy him.

The same couldnt be said about his favourite uppermoon though. Upper moon zero was the first demon and uppermoon he turned from being human...unlike the others they did their job perfectely as they had killed past Hashiras about decades ago. He may have been fond of them as they truly met his exceptations.

Just as he was thinking about them he felt their presence and smell near. They had teleported to him, on their knees for him while holding oh so something familiar to him. Something he has been chasing after for centuries.

The knowing red spider lilly sat at their hands. Their head and body bowed as they offered the flower to him. With a smirk but also a feeling of shock, he rushed to them. Carefully picking the delicate red flower as he spoke.

"My my...you completely outdone yourself my dear. Im glad that my most precious, strongest and honorable demon has managed to bring me the red spider lilly without getting themselves hurt or getting the flower stolen. Good job."