sad ending. the boy do a lot of effort to make the girl world become colorful but at the end , the girl still not realized and that boy do not have enough time to express his feeling before he dies. the music so touching and showing the boy never give up to make the girl happy T_T
I like this sad music background. I know this is an anime OST. I had heard this before but just can remember. Can someone tell me what is the name of this sound tract ?