Before the Sirens came to wreak havoc, When Denver and her sisters ships got scrapped they went on their separate ways with Denver becoming an Mercenary But due to an accident on her last mission she had to go under therapy until she was stable, but when her condition is already stable, the Sirens came and her service is needed After 2 years of Fighting the sirens, Denver requested a week off to do atleast one mercenary job, to which her job takes her to Japan, where she only need to get a briefcase from a bullet train How hard can it be, when her sisters and friend where also at the same train and their are also other mercenaries/assassins after the case? (Heavily inspired from the "Bullet Train" Movie) (Azur Lane isn't mine it belongs to it's rightful owners)