“Surely, it is a song and I try to eat zunka mochi.” — author's comment (translated)
The song talks about the zunka mochi, a type of mochi (rice cake) special of Tohoku region.
In the song, Zunko exalts mochi in various parts of the song . She saying that his dream is to eat it with a cafe in Akihabara beyond of compare with an arrow. Also she plays with her name in the chorus.