Once Again Idol

Story:

Hyunwoo was a seasoned member of an idol band getting ready to make their debut, but when a terrible accident on the set left him traumatized, he gave up on his aspirations of being a famous person and instead became an idol trainer. He desires for time to turn around since he is unhappy with his current course, and after an aircraft disaster, it does! Suddenly, he finds himself back at the age of nineteen, with no sign of a scar, a sizable crowd watching his band fight for the top prize on a music talent contest, and plenty of stage experience from his days as a trainer. Will he guide his band to prominence or will they once more lose their shine?