I define happiness this way. Happiness is very simple, just like a glass of water. We can't get it too full, nor can we get too little. We have to get it just right so that the water does not overflow and can quench our thirst. In fact, happiness is like this. Too much will be counterproductive and will cause problems. This article is actually my true story. I love her very much. Although we broke up now, I still love her. This article records every moment between me and her, and also tells the story. It tells you how a pair of lovers should get along in life, and also writes about my yearning for this love, so the title of my book is Love in the Red World, Love in the Red World, remembering the memories, and also yearning for future love. In fact, in this society, everyone yearns for a happy life. I hope that after reading this article, you will understand how to cherish the people in front of you, learn to bring happiness to the people you love, and don't look at unrealistic things. We must be able to see through the ups and downs of this society.