At first glance, classmates Koichi Otakura and Yua Narumi seemed like polar opposites. But after chilling together outside of school, they've gotten remarkably close in a short amount of time! Joined by Narumi's friend Ruriko Himeno, they continue to have fun over the weekends and uncover new sides of each other. Turns out Otakura is surprisingly good at coordinating outfits, singing karaoke, and...building muscle? Guess you really can't judge a book by its cover!