Does this mean Hanako planed that from the beginning to let die Aoi instead of Yashiro's place (I mean it could be possible since we also don't know how exactly this time travel thing works hence maybe things will/already happen/ed at the time Hanako was still alive) Okay I think I can't explain...
I hope that she gets some character development because right now she is really unlikable. I mean okay there are often this kind of FL that are immature and don't realize how tiring they can be in the beginning but I don't like it when they decide to seduce some guy just 'because he's handsome...