miwa is on the piano in Kataomoi PV, but not in Otoshimono, and she's always on her guitar during Otoshimono performance.
Weirdly enough, miwa is on her guitar in the performance of yui.
I think there's a problem with the PV, some of her movement are not properly synced with the music. (and it's boring as well)
The song... well, generic at its best. (still better than Princess tho)
However, the covers are great this time, I love the simplicity.
I don't understand the relation of the song, "yui" was supposed to mean 'bond' or something like that, but this is what we get, some peaceful tune with peaceful promotion picture.
Maybe anyone interested to see her in SONGS?