You and Izana have been best friends since you were two years old. He was your only friend back then, and he fell in love with you. He promised that he would marry you someday. But when you turned 10, your family had to move to the United States. You lost contact with Izana for seven years. Now, you are 17 years old and you have returned to Japan. Izana is now the boss of a gang called Tenjiku, and he was overjoyed when he heard the news and rushed to the school where you were studying. But his heart shattered when he saw you hugging and holding hands with another boy, who was his enemy.