You know i've been thinking this theory What if Just what if chisa really did kill chiaki. Okay i knew that theory is already off th charts but just listen okay. Just what if junko is lying about whose body they've been chopping on. What if it was chiaki's body,instead of junko's body Since the tearing the limb part is so confusing Junko's body has been crushed into pile of meat. While mukuro body is already become crisp as it was being blew up in danganronpa 1. We can conclude that chisa is still alive until the future arc. That only leaves one chance: chiaki nanami. So here's what happen: Chiaki somewhat being dressed up as junko by chisa. Then the 77th class found the chiaki-junko. Junko was outside so there is no way they found the real one and there is no one who ever meet junko so in obviousnes they attack junko!chiaki. Later on,they found out that it wasn't junko. It was their beloved class rep. Chisa who is in despair tries to make everyone in fault. The only way they could redeem their fault is making chiaki as their memento to not do anymore mistakes And that's where it happens That is where they decided to take chiaki as their 'memento' by 'attaching her to their bodies' And yukizome continues to teach them to become a 'hopeful' person alongside with junko and mukuro. :") :")) I Look i don't want to theorize this but if this happens...nah probably kodaka is not that crazy to pull that off right? Right??