Houseki no Kuni OP ‘Kyoumen no Nami’ by YURiKA from her 3rd single ‘Kyoumen no Nami’.
Buy Kyoumen no Nami:
iTunes: https://itunes.apple.com/us/artist/yurika/400848097
(Digital)
CDJapan: http://www.cdjapan.co.jp/product/THCS-60168
(Retail)
Yesasia: https://www.yesasia.com/us/tv-anime-land-of-the-lustrous-op-kyoumen-no-nami-anime-ver-japan-version/1062239589-0-0-0-en/info.html
(Retail)
MAG.MOE - The MAG, The MOE.