The group released their tenth studio album The Return on 23 March 2012, On February 8, 2013, Shinhwa’s agency announced the group’s 2013 Shinhwa Grand Tour: The Classic to commemorate the group’s 15 years since their debut was revealed. Mun along with Shinhwa won Mwave Global Star Awards for their music comeback.
December 2013, Mun's contract with Top Class Entertainment came to an end.
In an 2015 Instiz discussion post about viewers' favorite drama characters, Mun's Kang Taeha Discovery of Romance stays in top 10 at #6.
Mun released Shinhwa's 12th studio album "WE" in 2015.
With this win, Mun had won acting awards at all three major Broadcasting Networks.