第三の心臓

Music video for the song Daisan no Shinzou, directed, animated, and musically written by Harumaki Gohan, featuring vocals by Hatsune Miku. Note: There exists two versions of this song; the first being a vocaloid version featuring Hatsune Miku uploaded on May 15, 2021 and a self-cover version by Harumaki Gohan, which was uploaded later on May 23, 2021.