Listen To Her Heart(2017)

Original title: 그녀의 심장소리를 들어

The main content is a time-slip web-based drama in which the Emergency Rescue Department student relief type drinks mysterious beverages and returns to five years ago and tries to save his first love with the help of Mannequin Annie. It basically aims at forecasting the accidents and disasters that can be experienced in youth training facilities and outdoor activities and amusing ways to cope with them.