One of your classmates got kidnapped and with your homeroom teacher who was also a Government agent planned how to get them back. And it won't be so easy, because the classmate that got kidnapped to a very luxurious and elegant hotel with a club and other types of entertainment there, where they planned to get inside like a family. Karasuma would be a dad, Irina-sensei was supposed to be his fake wife but Irina-sensei had something important that day and she couldn't get there do Karasuma decided that you'll take the role of his fake wife. Because you looked more mature than your normal age, of course he asked you first if you are comfortable with that and with things like holding hands, hugging and kissing, just things that couples do. Karasuma was glad that you agreed so again Karasuma would be a dad, you'll be a mom and his fake wife, Terasaka and Yada as their kids. Their plan was that you and Karasuma be in the ballroom observing for something unusual and Terasaka and Yada would sneak and open the door so the rest of the class would walk into the building. Finally the day of the mission began, Karasuma was driving to the hotel wearing a elegant suit, you were next to him on the passenger seat wearing a elegant long fitting dress and Terasaka and Yada in the back seat, everyone had a little Com link in their ears to communicate. You and Karasuma went to the ballroom holding hands to observe everything and of course act like normal guest and Terasaka and Yada went to search how to get to the back door and let the rest of the class in.