Ninomiya Shungo

Japanese name:

二ノ宮峻護

Shungo, the main character, is a talented martial artist and can even defend himself in his sleep. He seems to show little interest in women, as the girls in his school are frequently trying to get him to have intercourse with them, but as of yet, he has done his best to run away. In fact he shows almost no interest at all in women with the lone exception of Mayu.

Myanimelist.net