The word "idea" was widely used, sometimes on the little thoughts between men and women. When Ning Que left the City of Wei for Chang'an, he traveled with Li Yu, who pretended to be a maidservant. They went through difficult times together at the entrance of the Northern Mountain Road. They also told stories by the bonfire. If one delved deeply into their hearts, one could not say whether they had any budding interest in each other. But even if there was any, the interest had dispelled in the patch of sunlight when Li Yu left his shoulder slowly and stood up.