Something we can learn

Has anyone watched the drama that just finished last week? The story is really interesting, about a 37yo man returning to youth at 18. How come? It's just fiction, right? Yes, it's not a real story. It's just an imaginary story that makes this drama more interesting. But, I'm not going to talk about the review of this drama or telling the story. You can watch it in your spare time and see what can be learned from it. So, I'm going to talk about something we can learn from the 18 Again drama from my point of view. You guys can add your point of view in the comment section, so we can learn from any point of view. Before that, can I ask you a question? You can answer in your heart and reflect it to yourself. "Regardless of your age, what would you like to do if you were younger?" I think we all have a different answer depends on our interests, our dreams, our background, and our personal experience. And maybe, if we were younger we want to fix our mistakes in...