Just a quick thought. I do believe that Kagamine Rin & Kagamine Len resemble Hoshino Ruby & Hoshino Aqua. Therefore, it would be interesting if I let "Ruby" sings the bright notes and "Aqua" perform the harmony as well as the low octave rap part, just like how Aqua always protects Ruby in Oshi no Ko. Enjoy! My YT video: https://youtu.be/F7oECD9kQCY* Original:YOASOBI「アイドル」 Official Music Video https://youtu.be/ZRtdQ81jPUQ • YOASOBI「アイドル」 Off... https://youtu.be/0ci_GF44LZg Music : Ayase ( https://twitter.com/ayase_0404 )Vocal : ikura ( https://twitter.com/ikutalilas )*Cover:- Vocal: Kagamine Rin ft. Kagamine Len ( 鏡音リン ft. 鏡音レン )Kagamine Rin V4X power / warm & Kagamine Len V4X power- Tuning, Mixing & Mastering by Starblood- Encode by Lacie