Now that she has entered high school, Koharu Tanaka begins searching for a club to join. But the last thing she expects is to be roped into the activities of the so-called "Groping Club." Despite its name, the club is surprisingly ordinary—their goal is to "grope" for new ideas, and new types of clubs and club activities that they could engage with, even if the end result is often outlandish. While the months go by, and different ideas are entertained, Koharu stumbles upon the most important thing clubs can provide—lifelong friendship.