Hasegawa Kodaka is pathetically inept at making friends. When he comes across the brash loner Mikazuki Yozora, who typically chats with her imaginary friend, the two outsiders become the unlikeliest of allies. Realizing that they have no hope of a normal social life, they decide to form a group called "The Neighbor's Club" in order to make friends. As luck would have it, five new members join the club who are more socially awkward than they are. Will these quirky misfits ever make normal friends, or are they all doomed to social failure?