Total hope spot death
This is just insulting, 'he would later die of a cold' tier. I was already somewhat emotionally divested, then this happened, and then the end of the chapter...I'm a strong proponent of 'a work isn't bad because the author took it in a direction you didn't want,' but even I have a limit.
I think the crux of my issue is that it jumped the shark in terms of forced drama and making Kagami cartoonishly evil, then this...there's just a better way to execute the same thing?