#odagiri

Likely D Agency too ended up on being first having its spies used by the allies then being officially dismantled, at least as an Army spy agency.

Now... Nakano School had over 2500 graduates before it was closed... and in the novel D Agency too has more graduates than our 8 spies, which were merely the first batch it produced (and in the novel it produced 12 of them as a first batch).

It makes sense as Japan likely had more than 8 countries in which he needed to deploy spies so it would be pretty weird for D Agency to stop at 8.

We might headcanon D Agency produced more spies but as war started taking a turn for the worst they were pressured into doing a rushed job so the first 8 are the ones that were above every other batch... which means Yuuki might have wanted to save those spies from being discovered by the allies so they could keep on working for Japan in the shadows.

Hence he goes in hiding and, in a way, his spies go in hiding too, the new agency being no more part of the army and even more secretive than the old one... with Kaminaga as the new boss and, possibly, Sakuma as their official front (kind of like something similar to his role as liaison, a connection between the spies and the government).

And, of course, they'll have to train more people because otherwise they'll end up very understaffed... Amari can still be a spy but since he's in a wheelchair he can't be an action man and Jitsui left with Yuuki so, while he's probably working with him, he's not under Kaminaga either. With Miyoshi being dead, even if one assume Sakuma decided to become a spy now, it's still a very small number of spies, they wouldn't accomplish much.

Or, of course, we can assume our beloved spies stopped being spies... or maybe some of them did and some did not. It can be fun to picture what they would do were they decide to quit being spies!

I'm quite fond of this video which speculates Sakuma had a normal life after the war but the spies are still around even if the building where D Agency was had been destroyed.

I guess it can be up to what you prefer and to how you see the characters. You can make your story as close to real life as you want or part from it drastically. You can even have the spies become spies for another country... or they all die... and maybe reincarnate like in this video.

There's also people who speculated miyoshi survived... and a doujinshi series which claim Miyoshi became a ghost and Sakuma become a spy and took over Miyoshi's spy name (the spies don't use their true names but fictional names so Miyoshi's name isn't really Miyoshi).