"I'll wait for you... No matter how many years, I'll wait." "I love you, but I can't delay you." Si Xiaonan is selfish. Time, right or wrong, day and night are not worth him, as long as it is him in the end. Gu Yu is selfish. He covets her tenderness, but he can't let go of right and wrong, and goes his own way into the boundless darkness. Sometimes Si Xiaonan will think about what love is. It makes people feel wronged and tortured. It makes people love but cannot love it. It ties a knot in the lives of two people, but makes them struggle desperately to form an even worse knot or a bloody disconnection. The beginnings of love are all the same, but in the end they all have their own endings.