Susumuriku and Under the Umbrella of Dreams- Namine Ritsu [波音リツ] with Yufu on Chorus

NicoNico:???
NIcozon:???
Mp3:Coming soon
This is quite a cute little song by Ritsu. I don't exactly remember where I got this video from and who the producer was, but oh well I guess. And, like said in the title, Yufu is on the chorus.
This is not my video, it is uploaded for the fans.