On April Fool's Day, Xie Yanchu and I both prepared a "surprise joke" for each other. I pulled out a case of terminal cancer. He whipped out a divorce agreement. I signed the divorce agreement happily, but Xie Yanchu looked sarcastic: "You want to get divorced even if you pretend to be dead? It's a pity that I disappoint you. This is a lie." "You will never leave me in this life." But Xie Yanchu, I am not joking.