Zero No Tsukaima
I liked the plot, I loathed the whole, I guess the term is Tsundere (according to tv tropes and anime-planet)
All it took was 5 minutes into Futatsuki no Kishi, she brings out the whip and I realize I didn't enjoy the show so much the first time with all that beating on the guy - I'm sure as hell not going to enjoy a season two with her still beating on him, when he's proven in very certain terms how much he cares about her. Actually I've no idea why he cares about her, or if it's supposed to be some weird masochistic relationship on his side. But ugh.
So much ugh.
I already had problems with her treating him like a slave. But this just - so much ugh. Possibly cool story - too much ugh.