i dunno what this is but it sounds nice. i am not a fan of End Roll but this sounds nice.. also it's like a male koda singing xD and it actually reminds me of koda's ballads lol
also to me the most autumnish songs from Ayu are probably:
Secret
count down
Endless sorrow
No more words
I am...
Daybreak
Never Ever
Missing
Melody
A Song For XX (A Ballads version)
Sotsugyou Shashin
Rainbow
Moments
Return Road
Love song
November
reminds me
Seven Days War
Is this LOVE?
Pride