 In December 2005, Mun went to promote "Super Rookie" in Japan, where he was greeted at the airport by a large crowd.In early 2006, Mun was injured on the set of MBC drama "Wolf", resulting in it being pulled off air after four episodes.Mun was injured whilst shooting a scene, near Namdaemun in Seoul, where he was to save co-star Han Ji-min from being run over by a car.