Leeteuk revealed a text message he received from SM Entertainment's founder Lee Soo Man about enlisting.

Last week on 'Strong Heart', Leeteuk had shown the texts he received from Psy and other celebrities as a response to his "I'll miss you" text. On the November 13th episode, the show revealed a text he received from Lee Soo Man.

In the text, Lee Soo Man wrote, "If you want to walk down a new path, you have to face a different hardship once~~ Think about it as a good thing for the future and enlist with a happy mindset~~ A happy future will be waiting for you~~^^*"