MIXX debuted in 2016 with "Oh Ma Mind" under Chiko Entertainment. The meaning of their name is 'M' for Motivative, 'I' for Impression, and 'XX' for the female chromosome. In autumn 2016, member Henny was replaced by Heeu, and they added a fifth member, Mia (MIXX) for comeback with "Love is a Sudden" in January 2017.