Born in Hamamatsu, Shizuoka in 1980. As a singer-songwriter, he has written songs for “NHK Minna no Uta” show including “Mōfu no hi.” He is the author of Kochira, nigate resukyu QQQ! (illustrated by Yosuke Kinoshita), Kakan nichijō (with poetry by Kiwao Nomura, photography by Eisuke Asaoka, music by Keitaney-Love Kojima, published by Hakusuisha); him translation work includes Chugoku/Amerika Nazo SF, co-edited with Motoyuki Shibata (published by Hakusuisha). After the Great East Japan Earthquake in 2011, he began dramatic reading tours of Night on the Galactic Railroad (with Hideo Furukawa, Keijiro Suga, Motoyuki Shibata) and he continues to perform across the country with a focus in the Tohoku region. In a unit called “ponto” with Wen Yuju, Kojima is also actively making artworks and performances.