We are making Ringle Teens, a Ringle service for teenagers, after we have noticed the increasing number of junior users within Ringle. Ringle Teens is different from the existing Ringle service as it aims to provide lessons for teenagers by using teens-oriented lesson materials, including articles, video clips, and additional features that cater to teenagers' interests and learning abilities. The Teens TF collaborates with various teams within Ringle and is in charge of training and recruiting tutors, monitoring customer needs, and managing public relations necessary for Ringle Teens' operation. In particular, we strive to become the best tutoring platform for cultivating the 4C skills (concentration, creative thinking, communication ability, critical thinking) among our teenage users.