Just a random thought, what if Chujin and axis was discovered/caught/seen/etc when they killed integrity. How would everyone react and how would it impact the story for yellow?
I image that the underground will see him as a hero, Chujin loving it at first, but then the weight of what he has done will slowly begin to dawn on him, the soul is gone so no vac, asgore unsure what the fuck to do since the man he fired just did what alphys calmed to do, and alphys being more of a mess. as for what happen after IDK?