The End of the Combined Fleet

"Aiming to become a divine machine commander, the empire's rise to prosperity is here in one fell swoop. Each member must fight valiantly to destroy all enemies, and demonstrate the true strength of the maritime special attack unit." The 2nd Fleet makes a sea attack sortie. Fleet battles are already a thing of the past, and why did the 2nd Fleet have to sortie with the organization of fleet battles when the victory is decided by aircraft? In such a distorted situation, what will the commanders of both armies think about when making decisions?