Well, I gave it a shot, but couldn't go pass chapter 2... Realistically, no one would use antagonist approach like that. It's utterly stupid, what if he hadn't been able to awake his power? What then? Even if you had the power to save him, your relationship would have been ruined.

Secondly, I hate this type of childish (I use the word childish simply because I didn't want to sound too harsh) protagonist, he's the type I would punch in the face if I could, srsl, what's wrong with people, they always either make their main character completely stupid, innocent and dumb or too evil, can't we get something in the middle? Like literally everytime the MC thinks something, I cringe, especially the part he got shot... Also realistically, a normal-minded person would have fought back if his/her brother tried to kill her with Air Bending...

Thirdly, too much talking. Despite the length of a chapter, I feel like almost nothing happened in it... You could literally erase half of those and still understand the lower part (Especially that lengthy unnescesary battle scene.).

Last but not least, I feel like your story suffers from cliché syndrom. It's the typical savior but didn't know it type of story, and I find these kind really annoying! If he really is the savior, why didn't you just fucking tell him instead of throwing wind ball or whatever the hell at him?

Oh well, overall it's a decent read if you enjoy lengthy conversation and interaction between characters, it's just not my cup of tea... And that's why I rated it 3 stars :)