Talk:Dosukoi! Kenkyo ni Daitan / Ramen Daisuki Koizumi-san no Uta / Nen ni wa Nen (Nen'iri Ver.)/@comment-104.175.191.11-20150810205258/@comment-108.234.187.156-20150811004717

Their vocals have greatly improved since they recorded the indie version. Even watching live versions versus listening to the indie recorded single you could hear their voices have improved.

So while the music is a bit different, and the "nen" is added at the beginning, I think the main difference is their performance level.