This the opening theme to the number one selling manga comic and now Funimation movie of Fruits Basket. If you never heard about it, then sry, youtube violated the episodes or something like that, but it's a really good romantic/comedy anime. If you want to see it, then order the DVD volumes 1-4 (episodes 1-26) or read the comic volumes 1-18. The comic is rated 13+ and the DVD is for everyone.
It made me cry X') when it all ended
Enjoy, admire the picx and the song ^^