Kang So-young, who appeared on Netflix's "Escape Solo Island", has been active in the entertainment world in the past as Hot Topic in Korea. In 2006, he was ranked 9th in the SBS audition program and lived as a trainee in JYP and Star Empire. After that, he joined the Debut Team of Nine Mu Jisoo, but his debut did not come true, and he was active as a member of a group called WE. .. ..