 After Shinhwa's 18 Anniversary in March, Mun returned to acting and appeared in the South Korean TV cable (tvN) drama "Another Oh Hae-young" with Seo Hyun-jin.The drama premiered on May 2 with better rating than its predecessor Pied Piper.It broke its projected rating of 5% of on its 6th episode and becomes tvN's all-time highest rated drama for their Monday - Tuesday time-slot with the rating of 9.9% for its final episode.