Well, Natsukashii Mirai has a big tie-in, that's why it is selling well. It's the theme of NHK's program SAVE THE FUTURE, which is a program to "save the future" (duh) of the planet. It features famous artists like ayaka, Kobukuro (...) performing songs to help the project. That's why it is charting on the Top 20. But I expected more because of the tie-in.
|