This is the Sheet Music PDF of Ru's piano cover “火影忍者催淚主題曲串燒 Naruto Sad Theme Medley - Sadness and Sorrow, Grief and Sorrow, Samidare, Nindo, Loneliness, I Have Seen Much”
Here is the YouTube video: https://youtu.be/DhGHbvYheEY
Arranged and Performed by RuRu. (鋼琴改編及演奏: RuRu)