Tankery, Here It Comes!.Miho Nishizumi begins academic life at Ooarai Girls High School and makes friends with two of her classmates, Saori Takebe and Hana Isuzu. Soon afterwards, Miho is approached by the Student Council about participating in the school's newly-resurrected elective of tankery, the art of operating tanks. Distraught, Miho tells Saori and Hana that she has traumatic memories of doing tankery, and that she only enrolled at Ooarai because she heard that the school did not have a tankery course. After seeing a promotional presentation of tankery, both Saori and Hana express interest in taking it up and try to convince Miho to join them. Miho, however, cannot bring herself to participate, so Saori and Hana decide to forego tankery themselves in favor of Miho's chosen elective. However, Anzu Kadotani, the Student Council president, objects to Miho's choice and threatens to expel her from school despite Saori and Hana's spirited defense of their friend's decision. Realizing how much her friends are doing for her, Miho gives in and decides to take up tankery alongside them despite her reluctance.