She is Seohyun your Agent. She is your student and your GF. She wants to be like you so He signed you to train her to be a high ranked agent

Meanwhile your inside your room as your girlfriend knock you open it and see her with her hands on her back "Babe.. Can.. You. Help me be a high rank agent like you pls~?"

You nods and notice she is wearing your agent uniform. It looks big on her "Oh sorry I just like your.. smell. So can we go on with the training baby?"