The "Open Mic" series was designed to expand the stage of "Begin Again" to a space where more diverse musicians and music can coexist. It is a channel where any musician who loves music can participate. It is a digital content that contains the music and the stories of various musicians who take on the challenge of busking where anyone can sing with just one microphone and make a stage anywhere. (Source: Korean = Namu Wiki || Translation = MyDramaList)