Ni Feng has always felt that the saddest thing about being a human being is that he is so insignificant that even if he is busy working for others, he leaves almost no trace in their hearts, as if he has never existed. But now he finally understands that what's really sad is that that person clearly knows about your sacrifice for him, but he doesn't take it seriously. Even if someone fights for you, all they can get is "So what?"