UPDATE:
Thank you for clarifying your intent. It appears I was mistaken in thinking there wasn't very much thought put into this song. The structure you described in your response to my initial review would be very useful if put in the description. That way there's no confusion.
For the most part the divisions between the sections of the songs are very clear-cut. The only thing is the transition from the 3rd to the 4th to the 5th sections is blurred a bit.
Overall, I think you did a very nice job getting your intent across.
Original 2 1/2 Star Review:
"I'd love to give more constructive criticism regarding this piece, but there isn't enough detail in the description to show what your thought process was in creating it. Without knowing your intent, I can't give very much in the way of constructive criticism, and my review and rating will be based on my personal taste rather than how well I thought your intent came across.
My take: Going off what is currently presented in this submission, to me, there seems to be a lack of focus. it's as if you didn't really know what you wanted to do. That's okay as long as you are forthcoming about it. However, from your description (which is currently, "Trying to tell a story or something... darkness, victory, death..."), IMO it's as if you threw together some vague terms hoping something would stick. That lack of thought and intention could, and in this case does, really hurt your piece.
That said, there are some interesting elements I like that don't have as much thought behind them as they could. For example, the title, "Heroine Heartbeat" is interesting. How did you come up with this? Why did you use that title with this particular song? How does this fit with the music? In my experience, these are simple but helpful questions to ask. Another example is the intro synth. It's very cool on its own and its eerie sound sets the tone for what could be a fitting atmosphere for a song title like "Heroine Heartbeat".
Mixing-wise, the balance of the mid-bass is a little loud compared to the rest of the piece. This can be fixed with some equalizing. As for the piece as a whole, the music is too quiet. I suggest using some kind of compressor/limiter or at least some form of normalization to boost the volume of your mix.
I hope you find my feedback useful, even though it's limited. :)
More info about how I review music here: https://codefreq.newgrounds.com/news/post/1089806"