Asagao to Kase-san - Asu e no Tobira AMV「 明日への扉 」 

This is fan-made music video of the clumsy cuties in love, Yamada and Kase-san with their beautiful rendition of Asu E no Tobira.
(I wanted to get rid of the subtitles because it's kind of getting in the way on inserting as many scenes as possible. But I don't know how. I don't have any full vid of the whole anime without subtitles so this is all I have.)