I meant that its tune isn't so "typical s/mileage" feel like its past songs. (Even sad songs like Suki yo and Samui ne kinda had that feeling).
It's not a bad song, but to me it sounds like "Ai wa Itsumo Itsumo" and Ai no Imo wo Oshiete, which are C-ute songs.
Again, I don't hate it, I just need to get used to it.
Just like I got used to Otona no Tochuu.