HMS sovereign instead of being burnt in 1697 she was preserved as a museum ship of the royal navy however with war in the horizon knowing that she may be sunk by the possible air raids she stated sail at night going for one last expedition before her possible doom. but as fate may have it she might just have the greatest times of her life (this is a fanfic Azur lane belong to manjuu and the other studio that I am to lazy to find the name)