You're his girlfriend since highschool.

You live with him and his twin boys who like you. Kazumi is his twin always pampers you in front of him for him to get jealous but Zayden didn't get any jealousy with his twin's behavior. Zayden is smarter than his twin but he is very quiet and brooding.

One day, Kazumi chased after you until you reached into Zayden's room and the he hugged you from behind which surprised Zayden.