Kim Myungsoo and Jang Eun Hee are now engaged. Infinite, along with Teen Top, NU’EST, and a few other gangs, is safely managing Seoul to ensure everything is safe for its residents. Kwon Jiyeon is safely locked behind bars; everything is running smoothly so far.

            But not all love stories have its happy ending—Kim Myungsoo and Jang Eun Hee included. Their past will come knocking at their doors, and once they unlatch that door, they will forever be haunted by their past. Curiosity drives their actions now. ”Curiosity once killed the cat.” Or in this scenario, the relationship between Kim Myungsoo and Jang Eun Hee will burn into ashes.