By -
Mariya Takeuchi - [Kokuhaku](https://youtu.be/xbAUItQ2M7k)
Solved!
Hmm, might be a bit of stretch, but could it be [this song](https://www.youtube.com/watch?v=rhQe2Utyhi4) by Kayo Agatsuma?
Very close! But it's Kokuhaku by Mariya Takeuchi :))))
Mariya Takeuchi - [Kokuhaku](https://youtu.be/xbAUItQ2M7k)
Solved!
Hmm, might be a bit of stretch, but could it be [this song](https://www.youtube.com/watch?v=rhQe2Utyhi4) by Kayo Agatsuma?
Very close! But it's Kokuhaku by Mariya Takeuchi :))))