After their album "2 Be Free" was released, Chung and Choi focused on their solo careers again. Chung released two studio albums "Vernicia Flower" (2013) and "Wholly Love" (2014). Choi also released albums "Montage" (2012) and "Blooming" (2013). However, they reunited at 2015 Emperor Group Annual Celebration & Emperor Entertainment Group 15th Anniversary Ceremony on 1 February 2015 in Beijing, China. Twins performed in the Hong Kong Coliseum on the last day of 2015, as well as the first day of 2016 until 4 January. Their last performance was said to be filmed for their upcoming concert DVD and it lasted for 3.5 hours where their last encore was a full hour.