So, all the Hashiras fell into the Infinity Castle. Of course, they got seperated to lower their chances of survival too. As many know, Shinobu didn't get to see the outer world again...

...But what if... There was a subtle change in the timeline? What if there actually was a person who Shinobu could gain support from...

And there she was. Standing before Douma - Upper Rank Two. The one who was supposed to kill her. She was unaware of her savior's presence... Of your presence.