Synopsis: (from the 1st season)
Hyakko is a manga whose main heroines were four girls when the story started. But as the story goes, many unique classmates show up. Those girls sometimes twist the heroine around their little finger or vise versa. In many situations, they all have noisy get-togethers with each other, and that is really fun.
The OVA will be bundled on manga volume 5 limited.