Powerful Pro Yakyuu: Powerful Koukou-hen

The members of Ohka-kai heard of a rumor of an equipment called "kondara" (Japanese slang of a roller used to level the ground), which is essential to baseball. As they discuss what a Kondara is, the hot debate goes causes the excited members to get confused. Finally, Koume decides to look for a kondara, but Anna is also excited and cannot be counted on.

Mr. Dojima refuses to join a professional baseball team, and becomes a high-school baseball coach in a small village. Through baseball games, he teaches his students the greatness of cooperation.

The web anime centres on five high school astronomy club members who solve people's concerns.

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.