ある日駆逐艦の行動を見守るという使命から 漣をストーキングしていた長門。 ゲーセンで『音ゲー』なるものをしているところをみて 自分も興味を持つ。 最初は馬鹿力で筐体ごと破壊するも 手加減を覚え、クリア、ノーミス もっとテンポのいい曲を…難易度あげつづける その後やるならビッグ７の私なら一番を目指さないとと 色んな音ゲーでハイスコアを繰り出すいつしか 彼女は『鎮守府のボスゴリラ』と呼ばれていた。

One day, Nagato was on a mission to watch over the activities of the destroyers, so she was stalking Sazanami. Spotting an arcade that had "music games", she took an interest herself. At first, remembering not to destroy the entire game cabinet with her monstrous strength, she worked songs with better tempos, getting Clears and Perfects...and continued to raise the difficulty level. She then determined that, if she was going to do this, then as one of the Big 7, she would aim to be the best. She claimed high score on a number of music games, and before she knew it, she was known as "Boss Gorilla of the Naval Base".