Geungnagwangsaeng

A lonely ghost named Park Ja-Eon, who haunts a subway car, is given a one-year opportunity by a deity to relive a year of her life and secure a place in paradise. Assisted by a grumpy divine guardian and now able to see ghosts, she returns to her senior year of high school. As she and her guardian help both spirits and living people, they begin to examine their personal relationships and past regrets. With time running out, Ja-Eon must decide if she can make the most of this second chance.