Yokubou to Koi no Meguri

From ShoujoMagic:
A series of non-linear and interrelated stories filled with bishies and angst!
Houjou Academy is a private school, isolated from the rest of the world and attended by the heirs of rich and noble bloodlines. At the center of everything is the first son of the Hanabusa family, Kinu. Through direct or indirect involvement, he is responsible for the scars carried by the students of Houjou Academy--he is like their God. The cycle of base desire and higher love begins with the introduction of an unsullied girl named Nanaha, whose denial of Kinu's casual touch causes him to reevaluate his perception of women, and he cannot help but leave a scar on her as well...