It's not even a harem.
It's basically Aika and Naomi, the other girls are just classmates Taiga has no interest in at all.
Still tho, compared to other protagonists like Tsukune and Rito, Taiga is the fucking man. He's pretty damn close to GAR as well, he only needed a hundred more chapters to really get in action.
Damn shame, fuck the Elevens.