I always thought that if I put in the effort, I would have no regrets. I always thought that as long as I work hard, I would be happy. But I was wrong, a big mistake. It turns out that some things can be obtained for nothing. It turns out that no matter how hard you work, you will still have regrets. It turns out that I will be sad when he is happy. It turns out that he cannot give me what I want. It turns out that no one in this world belongs to anyone~~~~