In 2015, he became MC on entertainment programs such as Tvn's "The Demand of Luxurious Food", KBS's Fashion-beauty Show "A Style For You", O'live's Travel Show "MAPS", JTBC's variety show "Knowing Bros". and Korean-Chinese program "All the Way With You", The first Chinese variety that he was in charge since his debut in Korean entertainment in 2005. The same year, M&D released their first EP, "Cottage Industry" with the title track "I Wish" digitally on April 16 and physically on April 20. The title track was also written and composed by the duo., which peaked at number two on the Gaon album Chart.