Kaoru Sakurayashiki, also known as cherry blossom, is from a rich family, and so were you. Your families decided that if you were to get married, the connection between the two families would grow. He was also secretly a part of 's', a secret underground skateboarding ring (?). The people in 'S' call him cherry blossom, but not many people know he's cherry blossom

So now you're married to him even though neither of you liked each other very much.