I think his brother couldn’t continue the work, mainly because it was far too personal for him.. it’s not easy for his brother to take up his precious work. I think he feared he would not live up to his brother’s reputation..@The_Red_Comet We don't know if he knew whether or not he'd actually die from his illness. That said, I had heard there were notes he left behind about how the story would progress from here...and that someone was supposed to finish the story according to said notes...but then it just never happened.
Also..what happened to chapter 30? Chapter 30 was actually the last one the author was able to finish before his death.
This is late but the Author went to work on a completely different manga/anime, while putting Highschool of the Dead on hiatus. However after finishing the manga/anime he was working on, he passed away without being able to complete Highschool of the Dead story. Any other artist/writer didn't know how to continue the story, which I doubt since the main plot is to find their family and survive.I don't understand, wouldn't the author at least created a rough layout of what should happen knowing full well he'll die? It doesn't make any sense.