サンタクロースの弟子 (Santa Claus no Deshi)

Background
"Santa Claus no Deshi" is an original song by Toya featuring Kagamine Len, Kagamine Rin, SF-A2 miki, Camui Gackpo, GUMI, Ryuto, Lily, Utatane Piko, Kaai Yuki and OLIVER.