The sound of "gurgling" water spread in the endless darkness, filling the entire river bank. A blood-red river spans the entire underworld from north to south. Yes, the underworld. The girl in black clothes didn't know why she was here, until two impermanences, one black and one white, walked up to her. There was a cold feeling on her wrists and bare feet, and then she heard the sound of chains. She couldn't see the bloody river, the dark clothes, or the chains in the hands of the Impermanences. Because her eyes, which were supposed to be clear and black, now looked a bit gray, like a dead person. Of course, these were all things Black and White told her. She opened her lips, and finally asked in a low voice: "Am I dead?" The people around her took a breath, but no one answered her. Only her ears were filled with the sound of the surging water of the Forgotten River. After a long time, someone said: "Your name is Luo Yan." The cold chains on her hands and feet were quickly removed, and she still stood there helplessly, her two pale palms rubbing each other, and a thin layer of sweat broke out on her palms. Someone seemed to be approaching, and then a hand that was colder than a chain held her hand and led her forward. Luo Yan heard the man say again: "Yan Yan, are you willing to stay here with me?" She didn't have time to stop, and bumped into the man's back. Luo Yan thought that this was the clearest voice she had ever heard, but she wanted to hear it again, so she just kept listening to him. Before she could answer, the man smiled self-deprecatingly, took her wet palm again, and walked forward step by step. That's all, the promise I made back then is just holding her hand and walking on.