I kinda like those covers. ^_^ It totally doesn't match the song, it looks like they're all at a wedding, and Risako looks strange (the girl's forehead is just too big for no bangs), but it's very pretty. ^^ I guess even though they're not keeping with the mature ballad in the actual song they thought they'd do it for the covers at least...
For some reason I'm not seeing this single as the one to catch them up to C-ute...