On SBS's "Strong Heart", TVXQ's Yunho revealed that Kang Ho Dong was his personal mentor. Yunho shared an anecdote involving his groupmate Max Changmin, which had taken place around the time of their debut. It then led to his confession of how he met Kang Ho Dong. "After our debut, I started feeling some doubt about working in the entertainment industry," he said. "But then I met Kang Ho Dong at the set of a variety program. I felt that I could get back up after receiving some kind words from him. Kang Ho Dong is my mentor." This episode of "Strong Heart" will be aired on February 8th, and will feature TVXQ's Yunho and Changmin, as well as veteran comedian Johnny Yoon, Girl's Day member Minah, SBS's announcer Kim Minji, as well as actors Lee Jong Suk, Shin Joo Ah, and Yoo In Na. Source: Seoul News via Daum