A personification of one of the "H"-class proposals, specifically the H39 project developed by the Kriegsmarine, added as part of a collaboration between Azur Lane and World of Warships.
The H-Class proposals were a series of battleship designs meant to succeed Bismarck and significantly improve the Kriegsmarine's fighting capacity against the Royal Navy and Marine Nationale. Wartime materials shortages and the infrequent operations of Kriegsmarine following the sinking of Bismarck prevented further development of the designs.
Friedrich der Große is portrayed as a woman with long black hair and yellow eyes, who fancies herself an orchestra conductor. She sees the Commander and others as children, gently chiding them and being generally caring, unlike Roon.