俺たちに翼はない - Under the Innocent Sky., lit. We Don't Have Wings - Under the Innocent Sky.
A 2009 eroge visual novel by Navel, also including multiple manga adaptations, a non-hentai prequel, Oretachi ni Tsubasa wa nai ~Prelude~, and a fandisc, Oretachi ni Tsubasa wa Nai AfterStory. Also adapted into a 2011 anime by Nomad.
