If you don't like the present, wouldn't it be a wonderful thing to go back to the past?
There is a time cell dedicated to meeting the needs of these people, as long as you are lucky enough to meet the cell's supervisor.
Song Yi is such a lucky person, returning to the era that she misses so much and seeing people from the past. She started to have a lot of fun, but as time went by, things got worse and worse. What the hell is it that two souls share the same body?
What story will happen between the adult Song Yi and the young Song Yi? Stay tuned!