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The author personally likes this book. Although it touches on depression, psychology, etc., It completely expresses the author's inner thoughts. The first part of the book (junior high school) is completely based on what happened in the author's junior high school. However, there are some fictional plots after high school, but Lan'er is the prototype of the author himself, so Due to the influence of the author's native family, the author himself is indeed a little depressed, but the author is now completely cheerful. The author wants to say here: life is only once, we must truly love life, all difficulties are only temporary, as long as we have light in our hearts, we will definitely be able to get out of the darkness and welcome our bright future.