Fortunately, all was not lost as Kitou seems to have been playing around with the idea of flying naval warships and seaplanes since then, resulting in this manga. Or more accurately speaking, he's apparently been thinking about the storyline to this new manga for a whole decade before he finally started in 2015. As a fan of both sci-fi and history, I can't help but like the plot and setting, considering it basically involves
The guy at Breading Bad scans was the first to pick this up, but I later got into touch with him(?) and he said he was more than willing to scan the raws, edit, and typeset while letting me translate. So here we are at last. There's currently 3 volumes out in Japan, with the 4th volume coming out in the near future. Breading Bad and I will try out best to catch up to Japan soon enough.
Download:
Futago no Teikoku v2 [Breading Bad & Hox]: Mega
Futago no Teikoku v2 c07: Mega
Futago no Teikoku v2 c08: Mega
Futago no Teikoku v2 c09: Mega
Futago no Teikoku v2 c10: Mega
Futago no Teikoku v2 c11: Mega
Futago no Teikoku v2 c12: Mega
Futago no Teikoku v1 [Breading Bad]: Mega