Hasegawa Kodaka is pathetically inept at making friends. When he comes across Mikazuki Yozora, who typically chats with her imaginary friend, the two outsiders become the unlikeliest of allies. The two outcasts decide to form a group called 'The Neighbor's Club'. Five new members join the club who are even more socially awkward than they. Will these misfits ever make normal friends, or are they all doomed to social failure?

"Seventeen-year-old Bret is a senior at the exclusive Buckley prep school when a new student arrives with a mysterious past. Robert Mallory is bright, handsome, charismatic, and shielding a secret from Bret and his friends even as he becomes a part of their tightly knit circle. Bret's obsession with Mallory is equaled only by his increasingly unsettling preoccupation with the Trawler, a serial killer on the loose who seems to be drawing ever closer...