From MangaHelpers:

Misaki is a member of the calligraphy club at school, but all of the other members have just graduated, leaving her all alone. In order for the club to continue to exist she needs to find new members. One hot day, she meets a strange new transfer student, Haruka. Haruka sleeps a lot, and is very fond of popsicles. She doesn't really have any interest in calligraphy, but she joins Misaki's club anyway. Most of her reasoning seems to be that Misaki bought her a popsicle once, and the clubroom has a great air conditioner. Soon, several of Misaki's other friends also join the club, and she's set for a great year of club activities-- except that none of them really care much about calligraphy! However, thanks to all of their extremely quirky personalities, it will not be a dull year! [tethysdust]