In the original text, I wrote that Lan Forgot Machine secretly bought a book about Longyang in the eighth year of single life. He looked at them with a red face for a long time and didn't know why.
Longyang Tale comes from a record of Wang Wei and Long Yangjun in the Warring States Policy Wei Ce. Later, it was widely used to refer to homosexuality among men, also known as the prosperity of Longyang.