Kuu posted another video from recording.
This time with sound!
But only her voice, no music.
https://www.instagram.com/p/ByAetojgN7k/
https://twitter.com/KODAKUMINET/stat...63055960547328
From those lyrics alone it sounds like a song like Cupcake or HOT HOT.
She also posted a video on her Insta stories how she is singing "K's" for the chorus of the song. Probably background vocals.
In the post she says that this is one of the songs she wants to make a MV for.