He did an album with her.
There’s the Wikipedia page if you want some more info on it. Another song titled “Owari No Sekai Kara” which is in the album, is the most popular one.
You can just discuss it in the music threads, whether you’re discussing it on the Key Sound Label thread, or the Overall Music Discussion thread.
Or you can create your own thread for the Owari No Hoshi No Love Song album.
