明日、僕が死んだら (Ashita, Boku ga Shindara)

Tomorrow, If I Die is a song sung by Miku Hatsune with Gumi Megpoid and Luka Megurine doing the chorus. It is the fifty-sixth track, the fifty-seventh track, and the fifty-eighth track in Other Vocaloid Songs 23: Greatest Hits Of Miku Volume 7.