- Well, without thinking too much: Iku and Murasa; they even have been compared already.
- For the kongou class, if Reimu is Kongou then Marisa, Sanae and maybe Sakuya would be good candidates.
- Yuyuko as Akagi? The problem with this one is that I think that Youmu should be Kaga, but I don't think it works.
- Cirno <-> Naka. I'm not saying that Naka is stupid, but how they self proclaim and that no matter how many times you get rid of them, they eventually reappear...every time.
- And Wriggle as one of the german destroyers.
Yeah I know that this is based more on fanon but in the end that's the gist that relates both franchises.
- Kaga is Sakuya, always cool and finger always ready on the trigger - Re-chan is Flandre, that psycho grins - Either Suzuya or Haruna is Sanae, the high school girl aspect and the living goddess aspect - Hatsuyuki is Kaguya - Nagamon is Yuukarin, insanely powerful and loves little girls
Thinking of Tenryuu as Keine, but doesn't fit the chuunibyou aspect
Yamato is... Yukari ? Musashi is probably Yuugi
Mutsu and Taihou are Hakurei Shrine donation box and the Scarlet Devil Mansion and Wo-chan's hat is Pyonta Special mention, Zunyou is ZUN, or Suika