Season 0 of Haganai: I Don't Have Many Friends premiered on September 22, 2011.

Season 1 of Haganai: I Don't Have Many Friends premiered on October 7, 2011.

Kodaka Hasegawa has just transferred to St. Chronica's Academy and he's having a hard time making friends. With his naturally blond hair and fierce looking eyes, people constantly mistake him for a delinquent. One day, he runs into his bad-tempered loner of a classmate, Yozora, while she's talking to her imaginary friend, Tomo. Since neither of them have any friends, they decide to form a club and start recruiting some.

Season 2 of Haganai: I Don't Have Many Friends premiered on January 11, 2013.