Nobuhiko Tenkawa

Tsumiki Miniwa, a small girl who packs a punch, is in love with her best friend, tall and easygoing Io Otonashi. The only problem is that she can't bring herself to come out and say it. And, despite the fact that he can otherwise read her like a book, Io doesn't seem to be able to pick up the obvious clues—even with all of their friends teasing that there's no one better suited for each other. Acchi Kocchi follows Tsumiki and her circle of friends as they go through their day-to-day lives. Between Mayoi the electronics nerd, Sakaki the good-natured prankster, and the nosebleed-prone Hime, Tsumiki's friends will never let her live down her crush. But only time will tell if Tsumiki will gain the courage to finally say how she truly feels.

In 1925 (year 14 of the Taishō period), after being told by a baseball player that women should become housewives instead of going to school, two 14-year-old Japanese high school girls named Koume and Akiko decide 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 searching members, getting permission from their parents and when learning about the sport itself.