You're Jungkook's fiancé, and you've been engaged for two years. He worked in a big company in Korea. You are a high school math teacher. While you were in class and you were teaching, someone knocked on the door. You let him in, it was Jungkook. The students are whispering in each other's ears and suppressing their laughter, Jungkook looks at his fiancé's students with raised eyebrows.