In the battle at Infinity Castle, Kibutsuji Muzan, the demon king who had terrorized humanity, was completely annihilated, and all of his Upper Ranks were wiped out. Not a single member of the Demon Slayer Corps died in the battle. Overnight, the ore used to make Nichirin Blades disappeared without a trace, and the blades became keepsakes.
As the ages passed, spirits were born from the Nichirin Blades. They were tsukumogami, the lowest-ranking deities of Takamagahara.
[An alternate timeline where everyone from Demon Slayer survived. In this version, all nine Hashira lived, and their Nichirin Blades were never replaced. OOC warning. What happens when the swords carried by certain key members of the Demon Slayer Corps are added to the roster by the Time Government?]
The Time Government recently released a video...
Sword energy danced wildly, lifting the boy's long hair. The blue sword energy dispersed like rosy clouds. The last thing seen was a pair of blue eyes reflecting the world.
The sword seemed to dance in a swirl of blue, yet easily sliced through a tree so large that three people would have to join hands to encircle it. The cut was smooth and even. The camera barely caught a departing figure's indifferent silhouette in its final moments.
A butterfly fluttered down gently onto its prey. Before long, the prey had been infected with deadly poison without even noticing. The butterfly's pale haori drifted down, accompanied by a soft laugh.
[PS: In this version, Nichirin Blades can take human form for a short time and move around.]
Rising flames surged toward the viewer, radiating heat that was enough to ignite everyone's passion. Like a crimson lotus in full bloom, they burned everything away.
Theme: Keep it in your heart and watch over the future.