She's standing on the water like a shipgirl? What in blazes....?

Maybe there's more to the "Koharu is actually Kitakami" theory than baseless speculation after all...

*checks the day*

Oh...

Obviously its because that's Destroyer rigging not Light Cruiser rigging.

Isn't April Fools over in Japan when ya think about it?

Commander is floundering

Wouldn't
やっぱり = As I thought,
ちゃんと改修を受けた艦娘じゃないと = If you're not a properly modified shipgirl
艦装は合わない = The equipment will not fit
んじゃないかなーてっ… = I wonder if it's (the above statements) are not true...

The current translation seems to be missing the last negative, which makes the sentence kinda weird.

Edit: But of course, rather than the convoluted mess that I translated previously, the following should be better :v

I've whacked on the leg parts as well, just in case, but...

Maybe it's not true that you can't equip the rigging unless you're a (properly) modified shipgirl after all...