So that's where her hat went.

Wait, there's no JMSDF Hiryuu?

Ooshio-chaaaan(s)~

That skirt is too lewd!

Koucchan said:

That skirt is too lewd!

That's not a skirt, but a frilled bikini. Also, she has an excellent figure.

user524 said:

Wait, there's no JMSDF Hiryuu?

No, but there's a Japanese Coast Guard firefighting ship.

Terribly sorry but the submarine Ooshio has no sister ships.