Maji de Watashi ni Koi Shinasai!, Kyoukaisenjou no Horizon Recommendations
Both of these Anime deal with school settings and Samurai lenages. Both also aired during the same time frame.
in Maji de Watashi ni Koi Shinasai! the main guy is surrounded by a whole lot of girls who's after him, similar to kyoSen (Kyoukai Senjou..), they both also have a fighting type style school. both are funny, both have a wide variety of martial arts and a wide variety of sizes^^...u know what i mean ^^..ohh and also i think the plot for both might be similar...i cant tell yet since there's only been 1 episode out so far for both anime.
Will edit as the anime progress...