I just caught up on the anime special novels, and...wow.
Special 3 was absolutely amazing. I just couldn't get enough of Adachi being a complete and total mess and Shimamura thinking lots of gay thoughts (plus the ping pong callback!).
Special 4, on the other hand...man. That was some heavy stuff. It was almost hard to read, but in a good way. It's actually nice to know that Adachi and Shimamura get to spend almost 70 years together, but it's also a really strange and sad feeling getting to see how all these characters' stories ultimately end. I mean, of course every person gets old and dies eventually, but it's a fairly unusual and unique choice on Iruma-sensei's part to actually show that and give his characters a definitive end rather than an open-ended future. Although, as Shimamura might say, I can't say I dislike it. This series is a masterpiece.
Anyway, my copy of Volume 10 arrived last week, and now I'm finally ready to start reading! I can't wait to see where the story goes from here.