Chungcheongnam-do Office of Education Vocational High School Chaeum 119 is an app that supports students to design their own employment capabilities in order to select jobs and companies and increase happiness in school life by considering students' employment and career aptitude. Using Chaeum 119, first-year students at Chungnam Vocational High School can increase their self-esteem by finding and implementing their own employment and career goals through 9 steps for one year.