Who is the Three Musketeers Aaron of Yang Xuli?

People from the media. Aaron, Yang Xu and Xiaobai are all traveling with one person, one dog and one car. They have different personalities, different education levels, different travel routes, different beliefs and different ways of traveling. However, they have the same name, and since the media honored them as the Three Musketeers on the Road. In Yang Xu's travel notes, Aaron is a self-media person. They have the same characteristics: lead an honest and clean life, don't like philandering, devote themselves to maintaining their own image and do a good job in the dignity that media people should have. That's why people like them more.