Kantai collection drama is boring. There, I said it.
It is a bit repetitive.
It is certainly easy for KanColle doujin writers to fall back on "one ship saves another" or "one ship waits for another to come home" drama building because it's baked right in to the setting.
I'm a sucker for that kinda shit, though, so I don't mind. Especially if it's done well, as here.