A vulgar title usually tells a vulgar love story. However, Mirila's words suddenly gave me a new understanding of love. She said in a rare and serious tone: Some people are destined to be friends after knowing each other for a lifetime, and some people fall in love before they meet... I thought about it carefully and felt that her words may not be unreasonable. Fate is an eternal mystery that even the great witchcraft has puzzled. How can it be explained by ordinary ethical knowledge? Thinking of this, I still used this vulgar name to tell a vulgar love story - a small fate.