Even though S/mileage doesn't sell very much, they're actually selling MORE than usual, unlike other H!P groups that have been selling about the same or less than what they usually do with their latest singles.
And this single also already outsold Berryz' latest and is approaching the best Berryz has ever sold so.... watch out for S/mileage
Congrats to S/mileage! I was a bit worried that this new mature image would hurt them, but I guess not. This single had to sell more with all the promotion.