I need help deciphering K O T O

I guess its a side project of koto or something but her album PLATONICPLANET is available but I've been able to find nothing else about her and the inception of this character?? Especially when its so so good! Really great music here but I can't find a lineage here!

Spotify:https://open.spotify.com/album/1Yt1RLt09djhvmK5wXvwsY?si=o5VQ4PiwRjqD9XusZOVRkg

Youtube: https://youtube.com/playlist?list=OLAK5uy_kgYKAMSPduFFCicgdIWyGbgp2OTzx6hJA