From Seven Seas:
Recent high school transfer student 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, the two outcasts decide to form a group called “The Neighbors Club” in order to make friends and maybe even learn a thing or two about social skills.