>the real question is what plane is on the flight deck.
humble, ur question is good.
I guess, The twin engines airplane is Type-99 twin engines light bomber (Ki-48),just transporting or testing take off...
These CV/LST has "lunching deck" on these tail.
"Dai-hatsu"s with infantrys & tanks can come out from this deck.
plz watch pic.

#pic is not "Akitsu-maru". this is "Ryuujyou-maru"'s tail.