Holy shit this entire story is a freaking thesis in support of fate/destiny lol. So many parallels, with Yuko = Nagi, and Reiji = Esemori, even Chako = Saki. Love to see all the reveals finally tying the narrative together. The groundwork for this story was so beautiful done.
So I guess this means Nagi was in a similar situation as Yuko with being sexually assaulted/forced to sell her body against her will?