She was present in the game since its beginning, serving as the boss for the tutorial. In May 2019, as part of Azur Lane's second anniversary, she was formally introduced as a playable character in the Scherzo of Iron and Blood event. The announcement of her addition to the game also happened to coincide with the release of the song Bismarck by the Swedish power metal band, Sabaton, leading to Azur Lane's official English twitter account quoting the opening lyrics to the song as a hint to her addition to the game.
