These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: High School Debut
Crowning Moment Of Awesome: Several of the upperclassmen call Haruna out on the time she's spent with Yoh after they start going out. Four of them bring her onto the roof, and start pushing her. Haruna's response? Roll up her sleeves, and let the girls know that she's more than ready to get physical "if that's what it takes." Yoh finds out and runs into her on her way back, Haruna's face scratched up. When he chews her out for not asking for his help, her response? "I won." And a smile.
Ho Yay / Les Yay: At one point, Yoh's sister Asami starts to doubt her attractiveness, so she tries making eyes with Haruna to see if she still can seduce someone. She can, and Yoh stops Asami right before she tempts Haruna into kissing her. Later, Haruna gets so despondent over another guy kissing her that she considers running off to become a nun. In order to shock Haruna and show her it's no big deal, Yoh also kisses the guy. It also shocks all of their friends. To cap it off, the guy in question afterwards marvels about the kiss. "so soft..."
In the 15th volume, a guy Yoh is talking to at a karaoke bar spontaneously bursts out "Komiyama, I like you!," says Yoh is cute, and feels like he's found "real love"—each time hastily assuring Yoh that he doesn't mean anything by it as Yoh slowly starts to back away.