君の花と雨、僕の声 (Kimi no Hana to Ame, Boku no Koe)

Background
"Kimi no Hana to Ame, Boku no Koe" is an original work by uzP, featuring GUMI.

This song has entered the Hall of Fame. It is featured in the album Usohaki no Tonari de (嘘吐きの隣で).