Well, this one should have great reactions in the comments. Let's take a look at the clues.

Clue #1: This ship is from the Royal Navy.

Clue #2: She is a blue rarity ship.

Clue #3: The first two words that she says when you get her causes nightmares.

Alright, place your guesses here.

Alright, this ship is...

Kent! The devil of RNG constructions herself. Here are the explanations.

Clue #1 (explanation): She just is part of the Royal Navy.

Clue #2 (explanation): She is a blue rarity ship...it's in the background of the image above.

Clue #3 (explanation): HEY SHITTYKAN!!! I still hear that voice at night...in my nightmares.

Well, I have now done the literal devil of Azur Lane. I'll see you guys in the next guess!