battleship girl
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Taiwanese title: 鋼鐵少女
Japanese title: Battleship Girl ~鋼鉄少女 (Koutetsu Shoujo)~
korean title:강철소녀
A series of manga by Zeco and Kurudaz, serialized in Comic Gum, based on this series: Danbooru pool #877.
Later turned into an actual game.