Uhh..i think i understand what happens here. My assumption is maybe the persons (yoonjong & his parent) that was shown to ML is his past regrets which maybe he was holding
in his new life.So the man who returned him just trying to help him to solve all his past regret so that he can carried on with his new life. As his said in the last slide, he left 1 more person b4 he going back. So don't worry guys he will be back soon.
in his new life.So the man who returned him just trying to help him to solve all his past regret so that he can carried on with his new life. As his said in the last slide, he left 1 more person b4 he going back. So don't worry guys he will be back soon.