hello sekai (vocaloid)
A Vocaloid song by DECO*27 featuring Hatsune Miku, commissioned as the theme song of the Project Sekai movie Kowareta Sekai to Utaenai Miku.
A Vocaloid song by DECO*27 featuring Hatsune Miku, commissioned as the theme song of the Project Sekai movie Kowareta Sekai to Utaenai Miku.