ソープラグーン (Soap Lagoon)

Soap Lagoon is a song sung by Miku Hatsune and Gumi Megpoid. It is the one-hundred-and-sixty-fourth track in Other Vocaloid Songs 14: Mostly Gumi and the two-hundred-and-ninety-third track in Other Vocaloid Songs 20: Greatest Hits Of Miku Volume 4.