Mafumafu is the main writer for all the songs in the Soramafuurasaka unit and his duo After the Rain. After the Rain is a duo between Mafumafu and Soraru. After the rain has released 4 albums. Mafumafu frequently writes and uploads original songs.

While it is rare, mafumafu has made a couple live action music videos. The one to the right was for his original song Yume no Mata Yume.

He has also made live action music videos for After the Rain. Music videos have been made for Anti-Clockwise and Kaidoku Funou. While After the Rain primarily makes original songs for themselves, both Anti-Clockwise and Kaidoku Funou were made as the opening and ending of an anime.