ストライクウィッチーズ零 1937 扶桑海事変

Mio Sakamoto enters the Imperial Fuso Navy in 1937 as a cadet, twenty years after the last great war and well before she ever commands a Strike Witch unit. Training under Fumika Kitagou, she has to stand out among the other cadets to qualify at all, and the Neuroi choose that stretch to open a new attack. This manga runs the Fuso Sea Incident from inside Mio's training, filling in years the main Strike Witches story assumes.