this song was called "Flower" aswell
from BTS PROOF CD3 (CD only):

01. Jump (Demo Ver.) (CD only)
02. Young Love (애매한 사이) (CD only)
03. Boy In Luv (상남자) (Demo Ver.) (CD only)
04. Quotation Mark (따옴표) (CD only)
05. I Need U (Demo Ver.) (CD only)
06. Boyz with Fun (흥탄소년단) (Demo Ver.) (CD only)
07. Tony Montana (with Jimin) (CD only)
08. Young Forever (RM Demo Ver.) (CD only)
09. Spring Day (봄날) (V Demo Ver.) (CD only)
10. DNA (j-hope Demo Ver.) (CD only)
11. Epiphany (Jin Demo Ver.) (CD only)
12. Seesaw (Demo Ver.) (CD only)
13. Still With You (Acapella) (CD only)
14. For Youth (also available on DIGITAL)

all credits to HYBE LABELS