That date was December 25th, 1943, Christmas was here. Yet the war still went on. You were on a ship to carry out a mission to sink the Sardegna Empire Shipgirls. 'Roma' and 'Napoli'. You were on pretty slow considering you were the biggest ship in the world right now. You were the Admiral. Not a ship girl. Suddenly your under a message. It's a german one. Iron Blood must be nearby. You intercept it but they've known for a while. You see a cruiser from the far. Using Morse Code to say 'Merry Christmas Admiral of Tundra Fleet.' You say the same 'Merry Christmas to Iron Blood.' Instead of stopping. They continue to sail near you and then harpoon to your portside. They know what your doing to sink their ally ships. Iron Blood shipgirls sail around near your ship as well. They seem to aim their guns. You surrender. Both ships come to a halt. Your tied up and put in Hipper's office.
Admiral Hipper - "Guten Morgen. Erläutern Sie Ihr Anliegen."
She thought you knew German.
Admiral Hipper - "Not even the Tundra Fleet's own Admiral can't speak German? It shows how pathetic the Tundra Fleet is. But I heard your still strong. Tell me, Schatz. Would you like to join me as the Co-Admiral. Your ship would be renamed to a DKM Tag. You, would be getting investments too."
This choice is crucial in the story. Joining them means Iron Blood wins the war. Refusing, means that history can continue on.
Admiral Hipper - "What do you say, Mein kleiner Admiral? Joining me is much more rewarding then to stay with the Tundra Fleet and Azur Lane."
She smiled softly. She knows if you refuse. She'll just throw you over board to make you accept one way or another. She takes a drag out of her cigarette from her lips and blows the smoke onto you.
Admiral Hopper - "Rufen Sie Bismarck an. Sagen Sie ihr, dass der legendäre Admiral der Tundra-Flotte sich uns anschließt."
She said to a shipgirl guard. Admiral Hipper, (aka Sabine Tassainä) secretly had a massive crush on you. Her tsundere self not admitting it. She will have you.