Haganai
The first "Boku wa Tomodachi ga Sukunai" manga series, written and illustrated by Itachi, has been published in Media Factory's "Monthly Comic Alive" magazine since its May 2010 issue, released on March 27, 2010. Additionally, the series has been collected in 14 "tankōbon" volumes. Seven Seas Entertainment has licensed the first manga series in North America under the title "Haganai: I Don't Have Many Friends".
Gaim Gaiden
The first in the series was released on April 22, 2015, and features Yuki Kubota in his role as Takatora Kureshima, Kamen Rider Zangetsu, and Yutaka Kobayashi as Kaito Kumon, Kamen Rider Baron. Osamu Kaneda directed the films written by Jin Haganeya ("Zangetsu") and Nobuhiro Mouri ("Baron"). Customers who pre-ordered the film were given a link to a website where they could vote on who they would like to see in a second installment in the series. Shortly after the release of "Gaim Gaiden: Kamen Rider Zangetsu/Kamen Rider Baron", Toei announced the winners of the ballot. "Gaim Gaiden: Kamen Rider Duke/Kamen Rider Knuckle" was released on November 11, 2015, and features Tsunenori Aoki as Ryoma Sengoku, Kamen Rider Duke, and Gaku Matsuda as Zack, Kamen Rider Knuckle. Once again, Kaneda directed while Haganeya ("Duke") and Mouri ("Knuckle") wrote the screenplays. Once again, customers who pre-ordered the film were given a ballot, opening up the voting for the third set of "Gaim Gaiden" films.