@Paradox one thing I find hilarious about the anime is the case of Akemi Miyano. Now her only role in the series was VERY early on - chapters 13-16... and in chapter 16 she dies at the end.
So fast forward to the anime coming out it was early days for that too, they weren't really sure how long things would go so they let her live.
.... fast forward to chapter 241, her sister appears and becomes not just a major player but a main character... and her sisters death was a big part of that.
So the anime staff, suddenly remember they hasn't actually killed her off when they were supposed to and basically had to scramble to put together a new episode solely to make sure she actually died this time.