A superhuman woman, that is expected to be a savior of the futuristic world with no energy, needs to be saved by a looser fanboy- though not from danger outside, but rather from her self. Note: This is actually meant for comics(manga) script. Target audience is Y/A. Genre is sci-fi action/drama.

"...the flaw of the heroin is that she is expected to be hero?, but she is not yet." - Which means her flaw is denying her responsibilities I think this is a good flaw run with that but describe it in an efficient and poignant way.

"For inciting incident- that will need some work to put in the logline, since its not that easy to describe it shortly and effectively," - This is indicative of a problematic inciting incident. Best to devise an absolutely clear and easy to understand inciting incident for the plot to make the MC need to achieve the external goal.

What do you mean by "looser"? Is he "looser" as in 'loose in the head' or "looser" as in laid back chill?

Hi!
It was not her choice to become what she is, and now she sees it as obligation.
Her super-strength is that she is capable of being a source of energy(among others).
I'm not sure how to fit all this into logline, or if it is necessary.
As for physical vulnerability, she does not have one really, since physically she is more something like Captain America than Superman, so i don't think it is needed. Might be wrong though.
Anyway, thanx for response!
(hopefully i do not spam too much)