On January 17, Kim Chung Ha held a showcase for her 2nd mini album 'Offset' at Shinsegae in Seoul. 

In regards to making a solo comeback around the same period as Sunmi and Suzy, Kim Chung Ha commented, "I've been dearly waiting for my comeback so I plan to excitedly promote with much fun as if I'm riding a rollercoaster. I plan to work hard while promoting with the sunbaenims. I want to learn a lot from them by watching their stages."

She also shared her plans for promotions, and said, "The dancer unnies have injured their knees while practicing. The results are important but it's my goal to complete promotion without injuries."

You can watch Kim Chung Ha's MV for new title track "Roller Coaster" here.