Plot Twist : Gotland's hypnotism fail because Black Kashima isn't the kind to be easily tricked.
She's gonna report the whole situation when
More Plot Twist : Surprise Abyssal attack out of nowhere
And then Black Kashima will see the true potential of Ido's fleet... Maybe ?
My bet is that Black Kashima completely screws up, gets a date with the scrapyard, and has to hide out in the foreign shipgirls' dorm. Because I want to watch her put up with these whackoes.