This week, the legendary stars of 2019 have returned to the show. Kim Kang Hoon makes his MC debut as the special MC. Hong Hyun Hee thanks Happy Together for the boost to her popularity. Irene shares her stories about her business trips. Moon Myung Jin explains how he suffers from his shyness around people. Jonathan Thona talks about his college entrance exam. Suran makes her first appearance on Happy Together. Stay tuned!