The anime will feature an original story from the game on which it is based.

In 1925 (year 14 of the Taisho era) baseball is still quite unknown in Japan and there are only a few male teams. After being told by a baseball player that women should become housewives instead of going to school, 14-year-old Akiko invites her friend Koume to start a baseball team in order to prove him wrong. During this time, when even running was considered too vulgar for women, baseball is known as what the boys do and they face many difficulties when having to find enough members, to get permission from their parents and also when learning about the sport itself, which they soon discover to be more difficult than expected.

Asa and Kame strike up an immediate friendship when they arrive at the same time for their first day of duty at the Ooku, the splendid pleasure palace housing the harem of Lord Tenshi. The two young women are there to join the many hundreds of other maidservants—men are barred from entering, with immediate beheading the price of trespassing. It soon becomes clear that behind the luxurious lifestyle and ritualized routines of the Ooku lie sinister schemes and cynical rivalries. Meanwhile, a mysterious wandering potion-peddler known only as the Medicine Seller subtly insinuates himself into the Ooku, just as an uncanny, otherworldly menace begins to reveal itself. (Source: Fantasia Festival)

Second part of two Hakuouki movies.