after watching the MV,repeat it for umpteenth times,read this lyric finally i can understand what it's about.
ah my english so bad so i just can say;
"proud for our girls. they bravely facing new style of dancing and music genre. they stand there,dancing and singing not only for US,SONE but for every people,antis and the other. as a SONE i feel so grateful for them."
from the deepest of my heart,thank you so much SoShi