[relentlessflame]

Originally Posted by Hooves

I'm not much of an expert of this game, but judging from what Klashikari was trying to say is that

Spoiler for Chatter:

Haru wanted to prevent Kazuha from breaking up with him, and going back to Akira, somehow (dont know) prevented it from happening. So Kazuha is still with Haru... Which is just... Cruel o.o

Spoiler for Game spoilers, Kazuha Ending:

What's "cruel"?

Kazuha was just being silly. She feels guilty for the fact that she's had a blessed life while Akira has nothing (despite them being half-sisters). As she gets closer to Haruka, this guilt piles up until she decides she has to break it off. But this guilt she feels is wrong, and it doesn't make Akira happy that Kazuha would sacrifice her own happiness just to somehow "atone" for the life that Akira never had (which was never Kazuha's fault to begin with). Akira wants Kazuha to be happy too. This paralleled with Haruka's relationship with Sora, where Haruka too feels some sense of responsibility to Sora who, due to illness and their parent's death, was never able to live a truly happy life. But Sora doesn't wish for Haruka to be miserable either, so she comes to accept Haruka's relationship, knowing that she will still have an important place in Haruka's life anyway.

Basically, Kazuha's path is about the bonds of love between both siblings and lovers, and how these two sorts of love for different people can co-exist without conflicting with each other.