I think Haruka's a little unfair. Girls used to swoon over Yuu, who's a sports hero and a cute sassy tomboy.
Nowadays Haruka scares everyone away from Yuu, but Haruka gets to flirt with a harem. She has kind of a double standard.
Yuu is kind of weird though. Half the time she acts like Haruka's protector, the other half like a helpless grade-schooler.