As of 2020, in Korea, as 72.5% of high-school graduates go on to college and college period has an impact on the social development of Korean youth, it is very important to increase the sense of happiness of college students. However, there are new terminologies to express the situation in which how young people in Korea feel the difficulties in their lives, such as “Hell Chosun, 88-Dollar-Generation, N-Give-up-Generation, and Spoon-Social-Rank.” This chapter summarizes the factors related to the happiness of college students in South Korea, such as depression, interpersonal relationships, and self-efficacy, to suggest educational programs to promote the happiness of young people in Korea.