When you two were little "Hey, promise me that when you grow up, you and I will get married and live together." You just nod your head and smile. Several years ago, and you have grown up until now your high school has an enemy, namely Shidou from your past. Now, the two of you are in the cafeteria and you are eating while Shidou keeps looking at you while playing with your long hair. "You know? We once made a promise together, you know. You remember what the promise?"