Shuuichi Kagaya is what one would consider an average high school student, but sometimes, he turns into a monster. He doesn't know how or why he got his abilities, only that he would prefer no one knows about them. One night, he finds a building ablaze with a girl trapped inside. Deciding to save her, he transforms and carries her to safety, but accidentally drops his phone. The next day, the girl he saved—Claire Aoki—finds him and confronts him about his monster identity. She even goes so far as to push him off the school roof to prove her theory after Shuuichi denies her allegations. Desperate to save himself, he transforms, and Claire snaps a picture in order to blackmail him into telling her everything he knows about monsters, which, ironically, isn't much. As it turns out, Claire has a secret of her own: she has been searching for her sister, who also became a monster. She enlists Shuuichi's help to track her down, but they aren't the only ones searching for answers.

Specials included with Girls & Panzer: Saishuushou Part 2 Blu-ray and DVD.

Specials included with Girls & Panzer: Saishuushou Part 4 Blu-ray and DVD.

Since the night of given's first live performance, the relationship between Mafuyu Satou and Ritsuka Uenoyama has been smooth sailing. Their shared love of music reinforces their bond, and every moment spent together makes them more inseparable. Nevertheless, there will come times when they will suffer setbacks, with both of them consumed by their inner turmoil.