Jeong Suim (F) met with teenagers 5 years ago, 10 years ago and 15 years ago. She is the type of Korean teacher who read webtoons, play games and surfed the internet with the hopes of fitting in. Rather than investing her efforts in trying the impossible task of understanding teenagers, she wants to be their friend and occasionally be the knowledgeable adult through conversations. She has taken part in writing high school Korean text books, and has also written her own books, including First Humanities Starting at 14, Would You Listen to Me, Great Female Figures not in Text books, A Taste of Philosophy from a 17-Year-Old and What I Really Want to Say.