Board Thread:Questions and Answers/@comment-2601:243:1600:4B90:B43F:CA7E:E3A2:29EE-20180505000345/@comment-35533025-20180509020620

Oh, the song is called "Donut Hole" by Hachi, sang by Gumi Megpoid. You were incorrect, the girl had green hair, while the other one was white.