Holy shit that was one long chapter, a lot of stuff happened.
Nice.
p.s:
@ShinGetsu
At this point, Sperado's goal is to just acquire Leslie herself, rather than just her powers. In earlier chapters, when he realized that she has indeed awoke to her powers, he began to treat her as a tool rather than a sacrifice.
He wants to marry off the blonde-girl to the emperor's family, and have Leslie act as a one-man-army enforcer. The chains are there to, presumably, to make it easier to have her give in to the family's wishes.